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Place Value Tens/Ones

Grade 1 · Mathematics · Worksheet 2

  1. How many tens and ones are in 78? Answer: ______________
  2. Isabella is sorting her seashell collection. She has 8 groups of 10 shells and 3 single shells. How many seashells does Isabella have in total? Answer: ______________
  3. Look at the pattern of stars: ★★★★ ★★★★ ★★★★. There are 3 groups with 4 stars in each group. How many stars are there in total? Answer: ______________
  4. How many tens in 76? Answer: ______________
  5. Noah is counting his toy cars. He has 5 groups of 10 cars and 8 single cars. How many toy cars does Noah have in total? Answer: ______________
  6. A farmer has 8 baskets of apples. Each basket has 10 apples. How many apples does the farmer have? Answer: ______________
  7. How many tens in 29? Answer: ______________
  8. How many tens in 89? Answer: ______________
  9. Look at the pattern of base ten blocks: 2 tens rods and 8 ones cubes. What number is shown? Answer: ______________
  10. Expand 73: __ tens + __ ones Answer: ______________
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Answer Key & Explanations

Place Value Tens/Ones · Grade 1 · Worksheet 2

  1. How many tens and ones are in 78? Answer: 7 tens and 8 ones Solution: Look at the number 78. The first digit is 7, which means there are 7 tens. The second digit is 8, which means there are 8 ones.
    Full step-by-step solution

    Step 1: Look at the number 78. Step 2: The first digit is 7, which means there are 7 tens. Step 3: The second digit is 8, which means there are 8 ones. Step 4: So, 78 has 7 tens and 8 ones.

  2. Isabella is sorting her seashell collection. She has 8 groups of 10 shells and 3 single shells. How many seashells does Isabella have in total? Answer: 83 Solution: Isabella has 8 groups of 10 shells. Each group has 10 shells, so the groups have 8 × 10 = 80 shells. She also has 3 single shells.
    Full step-by-step solution

    Step 1: Isabella has 8 groups of 10 shells. Each group has 10 shells, so the groups have 8 × 10 = 80 shells. Step 2: She also has 3 single shells. Step 3: Add the shells from the groups and the single shells: 80 + 3 = 83. Step 4: Isabella has 83 seashells in total.

  3. Look at the pattern of stars: ★★★★ ★★★★ ★★★★. There are 3 groups with 4 stars in each group. How many stars are there in total? Answer: 12 Solution: There are 3 groups of stars Each group has 4 stars To find the total, add 4 + 4 + 4 4 + 4 = 8, then 8 + 4 = 12 The answer is 12.
    Full step-by-step solution

    Step 1: There are 3 groups of stars Step 2: Each group has 4 stars Step 3: To find the total, add 4 + 4 + 4 Step 4: 4 + 4 = 8, then 8 + 4 = 12 The answer is 12.

  4. How many tens in 76? Answer: 7 Solution: The number 76 is a two-digit number. The first digit (7) tells us how many tens are in the number.
    Full step-by-step solution

    Step 1: The number 76 is a two-digit number. Step 2: The first digit (7) tells us how many tens are in the number. Step 3: Therefore, there are 7 tens in 76. The answer is 7.

  5. Noah is counting his toy cars. He has 5 groups of 10 cars and 8 single cars. How many toy cars does Noah have in total? Answer: 58 Solution: Count the cars in groups of ten: 5 groups × 10 cars = 50 cars Add the single cars: 50 cars + 8 cars = 58 cars Noah has 58 toy cars in total.
    Full step-by-step solution

    Step 1: Count the cars in groups of ten: 5 groups × 10 cars = 50 cars Step 2: Add the single cars: 50 cars + 8 cars = 58 cars Step 3: Noah has 58 toy cars in total.

  6. A farmer has 8 baskets of apples. Each basket has 10 apples. How many apples does the farmer have? Answer: 80 Solution: The farmer has 8 baskets of apples Each basket has 10 apples To find the total, multiply 8 × 10 8 × 10 = 80 The answer is 80.
    Full step-by-step solution

    Step 1: The farmer has 8 baskets of apples Step 2: Each basket has 10 apples Step 3: To find the total, multiply 8 × 10 Step 4: 8 × 10 = 80 The answer is 80.

  7. How many tens in 29? Answer: 2 Solution: The number 29 is a two-digit number. The digit in the tens place is 2. This means there are 2 groups of ten in the number 29.
    Full step-by-step solution

    Step 1: The number 29 is a two-digit number. Step 2: The digit in the tens place is 2. Step 3: This means there are 2 groups of ten in the number 29. The answer is 2.

  8. How many tens in 89? Answer: 8 Solution: The number 89 is a two-digit number. The first digit (8) tells us how many tens are in the number.
    Full step-by-step solution

    Step 1: The number 89 is a two-digit number. Step 2: The first digit (8) tells us how many tens are in the number. Step 3: Therefore, there are 8 tens in 89. The answer is 8.

  9. Look at the pattern of base ten blocks: 2 tens rods and 8 ones cubes. What number is shown? Answer: 28 Solution: Count the tens rods. There are 2 tens rods. 2 tens is 20.
    Full step-by-step solution

    Step 1: Count the tens rods. There are 2 tens rods. 2 tens is 20. Step 2: Count the ones cubes. There are 8 ones cubes. 8 ones is 8. Step 3: Add the tens and ones together. 20 + 8 = 28. The number shown is 28.

  10. Expand 73: __ tens + __ ones Answer: 7 tens + 3 ones Solution: Look at the number 73. The first digit is 7, which is in the tens place. This means there are 7 tens.
    Full step-by-step solution

    Step 1: Look at the number 73. The first digit is 7, which is in the tens place. This means there are 7 tens. Step 2: The second digit is 3, which is in the ones place. This means there are 3 ones. Step 3: So, 73 expands to 7 tens + 3 ones.