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Worksheet: Addition or Subtraction Word Problems Within 100

Q1:

David and Jennifer were building houses out of blocks. David used 36 blocks. Jennifer used 51 blocks. How many blocks did they use?

Will the answer be bigger or smaller than the numbers in the question?

  • Abigger
  • Bsmaller

Do you need to add or subtract to find the answer?

  • Aadd
  • Bsubtract

Find out how many blocks they used.

Q2:

Anthony and Matthew were both playing a video game. At the beginning of the day, Anthony was at level 36 and Matthew was at level 26. During the day, Anthony moved up 16 levels and Matthew moved up 12 levels. Find the equation that shows the level Anthony reached.

  • A 3 6 + 2 6 = 6 2
  • B 2 6 + 1 2 = 3 8
  • C 3 6 1 6 = 5 2
  • D 3 6 + 1 6 = 5 2
  • E 3 6 + 1 6 = 5 1

Q3:

A man bought rice for 9 LE and milk for 19 LE. He had 44 LE. How much does he have left?

Q4:

Emma is trying to solve this word problem:

There were 41 birds in a tree. 15 of them flew away. How many birds are in the tree now? Emma said the answer was 4 1 + 1 5 = 5 6 . What did she do wrong? What is the correct answer?

  • A She made a mistake in the addition. The answer is 4 1 + 1 5 = 5 4 .
  • B She added when she should have subtracted. The answer is 4 1 1 5 = 3 4 .
  • C She added when she should have subtracted. The answer is 4 1 1 5 = 5 6 .
  • D She added when she should have subtracted. The answer is 4 1 1 5 = 2 6 .
  • EShe added when she should not have. The answer is 41.

Q5:

James is trying to solve this word problem:

There were 37 fish in a pool at the bottom of a waterfall. 12 fish swam down the waterfall into the pool. How many fish are in the pool now?

James said the answer was 3 7 1 2 = 2 5 . What did he do wrong? What is the correct answer?

  • A He made a mistake in subtracting. The answer is 3 7 1 2 = 2 3 .
  • B He subtracted when he should not have. The answer is 12.
  • C He subtracted when he should have added. The answer is 3 7 + 1 2 = 4 7 .
  • D He subtracted when he should have added. The answer is 3 7 + 1 2 = 4 9 .
  • EHe subtracted when he should have added. The answer is 3 7 + 1 2 = 5 1 .

Q6:

Liam has 62 blocks to build with. He used 29 blocks to build one house. He wants to build a second house with the leftover blocks.

Is the number of leftover blocks bigger or smaller than 62?

  • Asmaller
  • Bbigger

Do you need to add or subtact to find how many blocks he has left to build the second house?

  • Asubtract
  • Badd

How many blocks are left to build the second house?