Addition Within 10

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Addition Within 10 · Grade 1 · Worksheet 3

1. Leo has 7 stickers. Leo's mom gives 3 more stickers for being good. How many stickers does Leo have altogether? Answer: 10 Solution: Count the 7 stickers Leo already has. Add the 3 new stickers: 7 + 3 = 10.
   Full step-by-step solution

   Step 1: Count the 7 stickers Leo already has. Step 2: Add the 3 new stickers: 7 + 3 = 10. The answer is 10 stickers.

2. Lucas has 3 red blocks and 6 blue blocks. How many blocks does Lucas have in all? Answer: 9 Solution: Count the 3 red blocks. Count the 6 blue blocks. Add them together: 3 + 6 = 9.
   Full step-by-step solution

   Step 1: Count the 3 red blocks. Step 2: Count the 6 blue blocks. Step 3: Add them together: 3 + 6 = 9. The answer is 9 blocks.

3. 1 + 5 = ? Answer: 6 Solution: 1 + 5 = 6. You can count on from 1 to get 6.
4. Emma has 8 stickers in her collection. Her friend Mia gives her 2 more stickers. How many stickers does Emma have now? Answer: 10 Solution: Emma starts with 8 stickers Mia gives her 2 more stickers Add the stickers together: 8 + 2 8 + 2 = 10 The answer is 10.
   Full step-by-step solution

   Step 1: Emma starts with 8 stickers Step 2: Mia gives her 2 more stickers Step 3: Add the stickers together: 8 + 2 Step 4: 8 + 2 = 10 The answer is 10.

5. 1 + 8 = ? Answer: 9 Solution: 1 + 8 = 9. You can count on from 1 to get 9.
6. There are 3 red apples in a basket and 4 green apples in the same basket. How many apples are there in total? Answer: 7 Solution: Identify the number of red apples. There are 3 red apples. Identify the number of green apples.
   Full step-by-step solution

   Step 1: Identify the number of red apples. There are 3 red apples. Step 2: Identify the number of green apples. There are 4 green apples. Step 3: Add the number of red apples and green apples together. 3 + 4 = 7 Step 4: State the total. Therefore, there are 7 apples in total.

7. 0 + 5 = ? Answer: 5 Solution: 0 + 5 = 5. You can count on from 0 to get 5.
8. 1 + 3 = ? Answer: 4 Solution: 1 + 3 = 4. You can count on from 1 to get 4.
9. 1 + 7 = ? Answer: 8 Solution: 1 + 7 = 8. You can count on from 1 to get 8.
10. There are 3 red apples in a row and 4 green apples in another row. How many apples are there in total? Answer: 7 Solution: Identify the number of red apples. The problem says there are 3 red apples in a row. Identify the number of green apples.
    Full step-by-step solution

    Step 1: Identify the number of red apples. The problem says there are 3 red apples in a row. Step 2: Identify the number of green apples. The problem says there are 4 green apples in another row. Step 3: Understand that we need the total number of apples. To find the total, we add the number of red apples and the number of green apples. Step 4: Perform the addition. 3 red apples + 4 green apples = 7 apples. Step 5: State the final answer. There are 7 apples in total.