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Subtract Multiples of 10

Grade 1 · Mathematics · Worksheet 3

  1. There are 7 rows of chairs with 10 chairs in each row. If 3 rows of chairs are taken away, how many chairs are left?
    Answer: ______________
  2. Emma had 90 colorful beads to make a necklace. She used 40 beads for her project. How many beads does Emma have left? Answer: ______________
  3. Ben had 100 stickers. Then Ben gave 70 stickers to a friend. How many stickers does Ben have now? Answer: ______________
  4. Lucas is collecting toy cars. Lucas has 70 toy cars. Lucas gives 20 toy cars to Lucas's younger sibling. How many toy cars does Lucas have left? Answer: ______________
  5. Mere had 100 stickers. Then Mere gave 60 stickers to a friend. How many stickers does Mere have now? Answer: ______________
  6. 40 - 40 = ? Answer: ______________
  7. Isabella has 70 crayons in a box. Isabella takes out 50 crayons to color a picture. How many crayons are left in the box? Answer: ______________
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Answer Key & Explanations

Subtract Multiples of 10 · Grade 1 · Worksheet 3

  1. There are 7 rows of chairs with 10 chairs in each row. If 3 rows of chairs are taken away, how many chairs are left? Answer: 40 Solution: Find the total number of chairs at the start. There are 7 rows, and each row has 10 chairs. So, total chairs = 7 × 10 = 70 chairs.
    Full step-by-step solution

    Step 1: Find the total number of chairs at the start. There are 7 rows, and each row has 10 chairs. So, total chairs = 7 × 10 = 70 chairs. Step 2: Determine how many chairs are taken away. If 3 rows are taken away, and each row has 10 chairs, then chairs removed = 3 × 10 = 30 chairs. Step 3: Subtract the removed chairs from the total chairs. Chairs left = 70 − 30 = 40 chairs. Final answer: 40

  2. Emma had 90 colorful beads to make a necklace. She used 40 beads for her project. How many beads does Emma have left? Answer: 50 Solution: Emma started with 90 beads She used 40 beads for her necklace To find how many beads are left, subtract: 90 - 40 90 - 40 = 50 The answer is 50.
    Full step-by-step solution

    Step 1: Emma started with 90 beads Step 2: She used 40 beads for her necklace Step 3: To find how many beads are left, subtract: 90 - 40 Step 4: 90 - 40 = 50 The answer is 50.

  3. Ben had 100 stickers. Then Ben gave 70 stickers to a friend. How many stickers does Ben have now? Answer: 30 Solution: Start with 100 stickers. Subtract the 70 stickers given away: 100 - 70 = 30. Ben has 30 stickers now.
    Full step-by-step solution

    Step 1: Start with 100 stickers. Step 2: Subtract the 70 stickers given away: 100 - 70 = 30. Ben has 30 stickers now.

  4. Lucas is collecting toy cars. Lucas has 70 toy cars. Lucas gives 20 toy cars to Lucas's younger sibling. How many toy cars does Lucas have left? Answer: 50 Solution: Lucas starts with 70 toy cars. Take away the 20 cars given to the sibling: 70 - 20 = 50. Lucas has 50 toy cars left.
    Full step-by-step solution

    Step 1: Lucas starts with 70 toy cars. Step 2: Take away the 20 cars given to the sibling: 70 - 20 = 50. Lucas has 50 toy cars left.

  5. Mere had 100 stickers. Then Mere gave 60 stickers to a friend. How many stickers does Mere have now? Answer: 40 Solution: Start with 100 stickers. Subtract the 60 stickers given away: 100 - 60 = 40. Mere has 40 stickers now.
    Full step-by-step solution

    Step 1: Start with 100 stickers. Step 2: Subtract the 60 stickers given away: 100 - 60 = 40. Mere has 40 stickers now.

  6. 40 - 40 = ? Answer: 0 Solution: 40 - 40 = 0. Subtract the tens: 4 - 4 = 0.
  7. Isabella has 70 crayons in a box. Isabella takes out 50 crayons to color a picture. How many crayons are left in the box? Answer: 20 Solution: Start with 70 crayons in the box. Remove 50 crayons: 70 - 50 = 20. There are 20 crayons left in the box.
    Full step-by-step solution

    Step 1: Start with 70 crayons in the box. Step 2: Remove 50 crayons: 70 - 50 = 20. There are 20 crayons left in the box.