Subtraction Within 10

lessonbunny.com

Answer Key & Explanations

Subtraction Within 10 · Grade 1 · Worksheet 1

1. Emma had 9 crayons in her box. She used 4 crayons to draw a picture. How many crayons are left in her box? Answer: 5 Solution: Emma started with 9 crayons. She used 4 crayons for her drawing. To find how many are left, subtract the crayons she used from the total: 9 - 4 9 - 4 = 5 Emma has 5 crayons left in her box.
   Full step-by-step solution

   Step 1: Emma started with 9 crayons. Step 2: She used 4 crayons for her drawing. Step 3: To find how many are left, subtract the crayons she used from the total: 9 - 4 Step 4: 9 - 4 = 5 Emma has 5 crayons left in her box.

2. Emma drew 9 stars in a row: ★ ★ ★ ★ ★ ★ ★ ★ ★. She colored 5 stars yellow and the rest blue. How many blue stars are there? Answer: 4 Solution: Start with the total number of stars: 9 Emma colored 5 stars yellow. To find the number of blue stars, subtract the yellow stars from the total: 9 - 5 9 - 5 = 4 The answer is 4.
   Full step-by-step solution

   Step 1: Start with the total number of stars: 9 Step 2: Emma colored 5 stars yellow. Step 3: To find the number of blue stars, subtract the yellow stars from the total: 9 - 5 Step 4: 9 - 5 = 4 The answer is 4.

3. Liam had 8 toy cars. He gave 3 of them to his friend Noah. How many toy cars does Liam have now? Answer: 5 Solution: Liam started with 8 toy cars. He gave 3 of them away, which means he has fewer cars now.
   Full step-by-step solution

   Liam started with 8 toy cars. He gave 3 of them away, which means he has fewer cars now. To find how many he has left, subtract the number he gave away from the number he started with: 8 - 3 = 5 So, Liam now has 5 toy cars.

4. 10 - 0 = ? Answer: 10 Solution: 10 - 0 = 10. Since 10 + 0 = 10.
5. 9 - 0 = ? Answer: 9 Solution: 9 - 0 = 9. Since 9 + 0 = 9.
6. 6 - 0 = ? Answer: 6 Solution: 6 - 0 = 6. Since 6 + 0 = 6.
7. There are 7 circles drawn in a row. 4 of them are shaded blue and the rest are yellow. How many yellow circles are there? Answer: 3 Solution: Start with the total number of circles: 7 Subtract the number of blue circles: 7 - 4 7 - 4 = 3 There are 3 yellow circles.
   Full step-by-step solution

   Step 1: Start with the total number of circles: 7 Step 2: Subtract the number of blue circles: 7 - 4 Step 3: 7 - 4 = 3 There are 3 yellow circles.

8. Maya is playing with 7 toy cars. 4 cars roll under the couch. How many toy cars does Maya still have? Answer: 3 Solution: Count the 7 toy cars Maya started with. Take away the 4 cars that rolled away: 7 - 4 = 3.
   Full step-by-step solution

   Step 1: Count the 7 toy cars Maya started with. Step 2: Take away the 4 cars that rolled away: 7 - 4 = 3. The answer is 3 toy cars.

9. Charlotte has 8 balloons. 1 balloons float away. How many balloons does Charlotte have now? Answer: 7 Solution: Charlotte has 8 balloons to start. Subtract the 1 balloons that floated away: 8 - 1 = 7.
   Full step-by-step solution

   Step 1: Charlotte has 8 balloons to start. Step 2: Subtract the 1 balloons that floated away: 8 - 1 = 7. The answer is 7 balloons.

10. 2 - 0 = ? Answer: 2 Solution: 2 - 0 = 2. Since 2 + 0 = 2.