Curriculum Content for Grade 3

The exercises for grade 3 will be based on the following sections:

A. Numbers up to 1000

  1. Patterns with multiples of 25 and 5
  2. Patterns with multiples of 20, 30 and 40
  3. Patterns adding a constant number
  4. Patterns subtracting a constant number
  5. Find the ancestor of a number
  6. Find the successor of a number
  7. Find the even number that follows a certain number
  8. Find the odd number that follows a certain number
  9. Fill in a sequence of numbers
  10. The place value of each number digit
  11. Representation of a number with hundreds, tens and units
  12. Finding how many tens a number contains
  13. Finding how many hundreds a number contains
  14. Count zeros when you write several numbers
  15. Decide whether a number belongs to a sequence

B. Compare numbers – up to 1000

  1. Compare numbers using the < and > symbols
  2. Find a number that is greater than another one
  3. Find a number that is less than another one
  4. Change the hundreds digit of a number to get a larger number
  5. Change the tens digit of a number to get a bigger number
  6. Change the units digit of a number to get a smaller number
  7. Use 2 digits to write numbers that meet certain conditions
  8. From 4 digits choose 2 to write the largest possible 2-digit number
  9. From 4 digits choose 2 to write the smallest possible 2-digit number
  10. From 4 digits choose 3 to write the largest possible 3-digit number

C. Addition and Subtraction – up to 1000

  1. An addition pattern
  2. A subtraction pattern
  3. “Addition with multiples of 1
  4. Subtraction with multiples of 1
  5. Special sums – Part 1
  6. Special sums – Part 2
  7. Special subtractions
  8. Decide whether a sum or a difference is odd or even

D. Addition and Subtraction Properties – up to 1000

  1. Fill in an equation using Addition and Subtraction properties
  2. Find the sum of 2 numbers if you know the sum of 2 other similar numbers
  3. Add by completing the hundreds first
  4. Add 3 numbers by first adding the 2 that complete hundred
  5. Between 5 sums find the largest and the smallest
  6. Between 5 differencias find the largest and the smallest
  7. Fill in numbers so that the sums horizontally and vertically are equal
  8. Subtraction by borrowing – the subtrahend is a 1_digit number
  9. Subtraction by borrowing – the subtrahend is a 2_digit number – Step_1
  10. Subtraction by borrowing – the subtrahend is a 2_digit number – Step_2
  11. Subtraction by borrowing – the subtrahend is a 2_digit number – a variation of the method

E. Practice multiplication

  1. Multiply by 0
  2. Multiply by 1
  3. Multiply by 2
  4. Multiply by 3
  5. Multiply by 4
  6. Multiply by 5
  7. Multiply by 6
  8. Multiply by 7
  9. Multiply by 8
  10. Multiply by 9
  11. Multiply by 10
  12. Multiply by 11
  13. Multiply by 12

F. Practice division

  1. Divide by 1
  2. Divide by 2
  3. Divide by 3
  4. Divide by 4
  5. Divide by 5
  6. Divide by 6
  7. Divide by 7
  8. Divide by 8
  9. Divide by 9
  10. Divide by 10
  11. Divide by 11
  12. Divide by 12

G. Multiplication and division

  1. Finding a factor in a multiplication
  2. Finding the dividend in an equation containing a Division
  3. Find the divisor in an equation containing a Division
  4. Find a product based on another similar but smaller product
  5. Find a product based on another similar but larger product
  6. Distinguish between Multiplication and Division
  7. Multiplication and Division are opposite operations
  8. Fill in an equation containing Multiplication
  9. Fill in an equation containing a Multiplication and a Division
  10. A Multiplication pattern
  11. A pattern of Division
  12. Multiplication when a factor is a multiple of ten
  13. Division when the dividend is a multiple of ten and the divisor is a 1_digit number
  14. Division when the dividend and divisor are multiples of ten
  15. Distinguish between the factor and the product of a Multiplication
  16. Distinguish between the dividend and the divisor of a Division
  17. Square numbers
  18. Recognize square numbers
  19. Write a number as the sum of 2 square numbers
  20. Square number problems

H. Numbers up to 10 thousand

  1. The number thousand
  2. The thousands
  3. A pattern with thousands
  4. Equivalence between Thousands and Units
  5. The names of the numbers from 1000 to 9999
  6. The digits of thousands, hundreds, tens and units
  7. Decompose a number into thousands, hundreds, tens and units
  8. Represent a number with thousands, hundreds, tens and units
  9. The place value of digits – Part 1
  10. The place value of digits – Part 2
  11. The place value of digits – Part 3

J. Compare numbers – up to 10,000

  1. Compare 2 numbers that have the same digits for thousands, hundreds, and tens
  2. Compare 2 numbers that have the same digits for thousands and hundreds
  3. Compare 2 numbers that have the same digit for thousands
  4. Compare 2 arbitrary numbers
  5. Compare a number with an expression
  6. Put 3 numbers in ascending order
  7. Find the number between two numbers
  8. Among several numbers find the one that is greater than a certain number
  9. Among several numbers find the one that is smaller than a certain number
  10. Finding how many numbers end in three certain digits
  11. Finding how many numbers end in two certain digits
  12. Change the hundreds digit of a number to get a larger number
  13. Change the hundreds figure of a number to get a smaller number

K. Round numbers

  1. Round numbers less than 100 to the nearest ten
  2. Round 3-digit numbers to the nearest ten
  3. Round 4-digit numbers to the nearest ten
  4. Round 4-digit numbers to the nearest hundred
  5. Given a number rounded to the nearest hundred, find the possible values ​​it might have had before being rounded
  6. Given a number rounded to the nearest hundred, find the largest possible number and also the smallest possible number that could have been before being rounded
  7. Round a number to the nearest ten, the nearest hundred, and the nearest thousand

L. Adding up to 10,000

  1. Add multiples of 100
  2. Add multiples of 500
  3. Add multiples of 250
  4. Property of addition: Adding a certain number to the first addend and subtracting it from the second addend does not change the result
  5. Property of addition: Subtracting a certain number from the first addend and adding it to the second addend does not change the result
  6. Add thousands with hundreds, tens and units
  7. Fill in an equation containing sum
  8. Add a number of 2 or more digits to a number of 1 digit
  9. Add a 3-digit number to a 2-digit number (without carrying)
  10. Add a 3-digit number to a 2-digit number (with carrying)
  11. Add 2 numbers of 3 digits each
  12. Add 2 numbers of 4 digits each
  13. Add 4 numbers of 2 or more digits
  14. Fill in digits in an adition of a 3-digit number with a 1-digit number
  15. Fill in digits in an addition of a 3-digit number with a 2-digit number
  16. Fill in digits in an addition of 2 numbers of 3 digits each
  17. Estimate the sum of 2 numbers of 3 digits each
  18. Among several numbers, locate 2 of them with a certain approximate sum

M. Subtraction up to 10,000

  1. Subtract multiples of 100
  2. Subtract multiples of 500
  3. Subtract multiples of 250
  4. Subtraction property: Add a certain number to both subtrahend and minuend
  5. Subtraction property: Subtract a certain number to both subtrahend and minuend
  6. Subtracting hundreds, tens, and units from thousands
  7. Complete an equation containing a sum
  8. Subtract a 1-digit number from a 4-digit number
  9. Subtract a 2-digit number from a 4-digit number without borrowing
  10. Subtract a 3-digit number from a 4-digit number without borrowing
  11. Subtract a 3-digit number from a 4-digit number borrowing only once
  12. Subtract a 3-digit number from a 4-digit number by borrowing twice
  13. Subtract a 2-digit number from a 3-digit number
  14. Subtract a 4-digit number from a 4-digit number
  15. Subtract a 1-digit number from a multiple of 1000
  16. Subtract a 2-digit number from a multiple of 1000
  17. Fill in digits in a subtraction of a 1-digit number from a 2-digit number
  18. Fill in digits in a subtraction of a 2-digit number from a 3-digit number
  19. Estimate the difference of two 3-digit numbers
  20. Among several numbers, locate 2 of them with certain approximate difference

N. Multiplication by multiples of 10 and 100

  1. Multiplication of a 1-digit or 2-digit number by a multiple of 10
  2. Multiplication of a 1-digit or 2-digit number by a multiple of 100
  3. Multiplication of 2 múltiples of 10
  4. Fill in an equation containing Multiplication of at least one multiple of 10
  5. A multiplication pattern of multiples of 10

O. Multiplication – Distributive Property

  1. Multiplication using rows of balls
  2. The distributive property of multiplication over addition – using balls
  3. Apply the distributive property to fill in an equation – case 1
  4. Apply the distributive property to complete an equation – case 2
  5. Apply the distributive property to complete an equation – case 3
  6. Apply the distributive property to complete an equation – case 4
  7. Apply the distributive property to multiply 2 numbers
  8. Apply the distributive property on subtraction to multiply 2 numbers less than 20
  9. Apply the distributive property on addition to multiply a 1-digit number by a number greater than 20
  10. Apply the distributive property on addition to multiply a 2-digit number with a 1-digit number
  11. Apply the distributive property on addition to multiply a 1-digit number with a 3-digit number
  12. Vertically multiply a 2-digit number with a 1-digit number using a scheme to apply the distributive property
  13. Vertically multiply a 2-digit number with a 1-digit number
  14. Fill in the missing digits in a multiplication of a 2-digit number by a 1-digit number – case 1
  15. Fill in the missing digits in a multiplication of a 2-digit number by a 1-digit number – case 2
  16. Vertically multiply a 3-digit number by a 1-digit number
  17. Fill in the missing digit in a multiplication of a 3-digit number by a 1-digit number
  18. Fill in the missing digits in a multiplication of a 3-digit number by a 1-digit number
  19. Finding in how many units a product is greater than another product
  20. Finding in how many units a product is less than another one
  21. Compare expressions containing products
  22. Fill in a multiplication equation so that the greatest possible product is obtained
  23. Fill in a multiplication equation so that the smallest possible product is obtained
  24. Complete the figures of 2 numbers in an equation that contains a multiplication

P. Exact division

  1. Distribute marbles in boxes
  2. Use a pattern to find the quotient and remainder of a division
  3. Recognize Dividend, Divisor, Quotient and Remainder in a division
  4. Find the Remainder in a Division
  5. The relationship between the Divisor and the Remainder
  6. Possible values ​​of the Remainder in a Division
  7. Finding which number cannot be Remainder of a Division
  8. Division as repetitive subtraction
  9. Estimate the Remainder of a Division
  10. Classify a Division as Exact or Inexact

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