Using Place Value to Subtract Two Digit Numbers (No Regrouping)—Let's Practise

Using Place Value to Subtract Two Digit Numbers (No Regrouping)—Let's Practise exercise

• What is 67 subtract 42?

  Hints

  How many tens and ones in 42?

  42 is made up of 4 tens and 2 ones. This is what you need to subtract from 67.

  How much is left after 4 tens and 2 ones have been subtracted?

  Solution

  67 - 42 = 25

• What is 93 subtract 62?

  Hints

  Create a place value representation of 93.

  There will be 9 tens and 3 ones.

  In 62, there are 6 tens and 2 ones. Subtract this from 93.

  Use this place value grid to help you.

  Solution

  93 - 62 = 31

• Can you find the answers to the subtraction problems?

  Hints

  Create your own place value grid and represent the larger number.

  For example, if we were solving 98 - 55, we could create a place value grid like this.

  We would then need to work out how many tens and ones in 55 and cross these off.

  55 is made up of 5 tens and 5 ones. What is left is the answer.

  Solution

  98 - 55 = 43

  We can see this represented in the image above.

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  • 77 - 36 = 41
  • 86 - 53 = 33
  • 64 - 32 = 32

• Solve the subtraction problems.

  Hints

  Represent the larger number with place value blocks.

  You could draw them out with a pencil and paper.

  Find out how many tens and ones the smaller number is made up of and cross these out.

  You can use this image to help you to solve 62 - 41.

  You can create something similar yourselves to solve the other problems.

  Solution

  21

  • 62 - 41 = 21
  • 76 - 55 = 21
  • 48 - 27 = 21

  22

  • 93 - 71 = 22
  • 45 - 23 = 22
  • 57 - 35 = 22

  23

  • 68 - 45 = 23
  • 74 - 51 = 23
  • 89 - 66 = 23

• What is 48 subtract 22?

  Hints

  48 has been represented in the place value grid, we need to subtract 22.

  How many tens and ones in 22?

  22 is made up of 2 tens and 2 ones.

  Use this place value grid to help you.

  Solution

  48 - 22 = 26

• Can you solve the word problems?

  Hints

  Identify the two numbers in each problem and write out a subtraction number sentence.

  Represent the larger number with place value blocks.

  How many tens and ones is the smaller number made up of? Cross this off and see what is left.

  Solution

  In Class 1 there was a fruit basket with 38 bananas. On Monday, 23 children chose to have a banana. Now there are 15 bananas left. 38 - 23 = 15

  Class 2 are doing some art with leaves. Their teacher collected 87 leaves and 64 of them were used during the art lesson. There are 23 left now. 87 - 64 = 23