Using Place Value to Subtract Two Digit Numbers (No Regrouping)—Let's Practice
Basics on the topic Using Place Value to Subtract Two Digit Numbers (No Regrouping)—Let's Practice
Let's practice subtracting two-digit numbers with Razzi!
Transcript Using Place Value to Subtract Two Digit Numbers (No Regrouping)—Let's Practice
Razzi says get these items ready (...) Because today we're going to practice... Using Place Value to Subtract (no regrouping). It's time to begin! Let's use base ten blocks to subtract. What is thirty-three minus twelve? We can represent thirty-three with three tens and three ones. Then cross off two ones and one ten... which leaves twenty-one. Did you also get twenty-one? Let's tackle the next problem! What is fifty-eight minus twenty-eight? We can represent fifty-eight with five tens and eight ones. Then cross off eight ones and two tens... which leaves thirty. Did you also get thirty? Let's try one more! What is eighty-three minus forty-two? We can represent eighty-three with eight tens and three ones. Then cross off two ones and four tens... which leaves forty-one. Did you also get forty-one? Razzi had so much fun practicing with you today! See you next time!
Using Place Value to Subtract Two Digit Numbers (No Regrouping)—Let's Practice exercise
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What is 67 subtract 42?
HintsHow 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?
Solution67 - 42 = 25
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What is 93 subtract 62?
HintsCreate 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.
Solution93 - 62 = 31
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Can you find the answers to the subtraction problems?
HintsCreate 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.
Solution98 - 55 = 43
We can see this represented in the image above.
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- 77 - 36 = 41
- 86 - 53 = 33
- 64 - 32 = 32
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Solve the subtraction problems.
HintsRepresent 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.
Solution21
- 62 - 41 = 21
- 76 - 55 = 21
- 48 - 27 = 21
- 93 - 71 = 22
- 45 - 23 = 22
- 57 - 35 = 22
- 68 - 45 = 23
- 74 - 51 = 23
- 89 - 66 = 23
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What is 48 subtract 22?
Hints48 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.
Solution48 - 22 = 26
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Can you solve the word problems?
HintsIdentify 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.
SolutionIn 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
