Place Value Tens/Ones

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Place Value Tens/Ones · Grade 1 · Worksheet 3

1. Noah is counting his toy cars. He has 3 boxes with 10 cars in each box, and 7 single cars. How many toy cars does Noah have in total? Answer: 37 Solution: Count the cars in boxes. There are 3 boxes with 10 cars each. Multiply 3 × 10 = 30.
   Full step-by-step solution

   Step 1: Count the cars in boxes. There are 3 boxes with 10 cars each. Step 2: Multiply 3 × 10 = 30. So there are 30 cars in boxes. Step 3: Add the single cars. 30 + 7 = 37. Step 4: Noah has 37 toy cars in total.

2. Look at the pattern: ○○ ○○ ○○. How many circles are there in total? Answer: 6 Solution: Understand what the pattern shows. We see three groups of circles. First group: ○○ → 2 circles Second group: ○○ → 2 circles Third group: ○○ → 2 circles Add them together.
   Full step-by-step solution

   Let's look at the pattern: ○○ ○○ ○○ Step 1: Understand what the pattern shows. We see three groups of circles. Each group has two circles inside it. Step 2: Count the circles in one group. First group: ○○ → 2 circles Second group: ○○ → 2 circles Third group: ○○ → 2 circles Step 3: Add them together. 2 + 2 + 2 = 6 Step 4: Alternatively, you can multiply: 3 groups × 2 circles per group = 6 circles. Step 5: Conclusion. The total number of circles is 6.

3. Liam has 3 packs of crayons. Each pack has 10 crayons. How many crayons does Liam have in total? Answer: 30 Solution: Liam has 3 packs of crayons. Each pack has 10 crayons. To find the total number of crayons, we multiply the number of packs by the number of crayons in each pack.
   Full step-by-step solution

   Liam has 3 packs of crayons. Each pack has 10 crayons. To find the total number of crayons, we multiply the number of packs by the number of crayons in each pack. Step 1: Write the multiplication expression. 3 packs × 10 crayons per pack Step 2: Perform the multiplication. 3 × 10 = 30 Step 3: State the final answer. Liam has 30 crayons in total.

4. Sophia is organizing her art supplies. She has 4 boxes of crayons. Each box has 10 crayons. She also has 6 loose crayons on her desk. How many crayons does Sophia have in all? Answer: 46 Solution: Count the crayons in the boxes. There are 4 boxes with 10 crayons each. 4 groups of 10 is 40 crayons.
   Full step-by-step solution

   Step 1: Count the crayons in the boxes. There are 4 boxes with 10 crayons each. 4 groups of 10 is 40 crayons. Step 2: Add the loose crayons. 40 crayons + 6 loose crayons = 46 crayons. Step 3: Sophia has 46 crayons in all.

5. There are 3 rows of desks in a classroom. Each row has 4 desks. How many desks are there in total? Answer: 12 Solution: We have 3 rows of desks. Each row contains 4 desks. We need to find the total number of desks.
   Full step-by-step solution

   Step 1: Understand the problem. We have 3 rows of desks. Each row contains 4 desks. We need to find the total number of desks. Step 2: Think about the operation. If each row has the same number of desks, we can find the total by multiplying the number of rows by the number of desks in each row. Step 3: Write the multiplication. Number of rows = 3 Desks per row = 4 Total desks = 3 × 4 Step 4: Perform the calculation. 3 × 4 = 12 Step 5: State the final answer. There are 12 desks in total.

6. Sophia is organizing her book collection. She has 7 stacks of 10 books each and 8 single books on her shelf. How many books does Sophia have in total? Answer: 78 Solution: Sophia has 7 stacks of 10 books each. That means 7 groups of ten. Step 2: 7 groups of 10 is 7 × 10 = 70 books from the stacks.
   Full step-by-step solution

   Step 1: Sophia has 7 stacks of 10 books each. That means 7 groups of ten. Step 2: 7 groups of 10 is 7 × 10 = 70 books from the stacks. Step 3: She also has 8 single books. Step 4: Add the stacks and single books together: 70 + 8 = 78. Sophia has 78 books in total.

7. Matiu is helping his grandmother sort buttons. He has 4 piles of 10 buttons each and 6 single buttons. How many buttons does Matiu have in all? Answer: 46 Solution: Count the piles of ten buttons. There are 4 piles, each with 10 buttons. 4 piles × 10 buttons = 40 buttons.
   Full step-by-step solution

   Step 1: Count the piles of ten buttons. There are 4 piles, each with 10 buttons. 4 piles × 10 buttons = 40 buttons. Step 2: Count the single buttons. There are 6 single buttons. Step 3: Add the buttons from the piles and the single buttons together: 40 + 6 = 46. Matiu has 46 buttons in all.

8. How many tens in 58? Answer: 5 Solution: The number 58 is a two-digit number. The first digit (5) tells us how many tens are in the number.
   Full step-by-step solution

   Step 1: The number 58 is a two-digit number. Step 2: The first digit (5) tells us how many tens are in the number. Step 3: Therefore, there are 5 tens in 58. The answer is 5.