Line Plots

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Answer Key & Explanations

Line Plots · Grade 2 · Worksheet 1

1. Look at the pattern of stars arranged in rows: ★ ★ ★ ★ ★ ★ | ★ ★ ★ ★ ★ ★ | ★ ★ ★ ★ ★ ★ | ★ ★ ★ ★ ★ ★. There are 4 rows with 6 stars in each row. How many stars are there in total? Answer: 24 Solution: There are 4 rows of stars. Each row has 6 stars. To find the total, add the number of stars in each row: 6 + 6 + 6 + 6 6 + 6 = 12 12 + 6 = 18 18 + 6 = 24 The answer is 24.
   Full step-by-step solution

   Step 1: There are 4 rows of stars. Step 2: Each row has 6 stars. Step 3: To find the total, add the number of stars in each row: 6 + 6 + 6 + 6 Step 4: 6 + 6 = 12 Step 5: 12 + 6 = 18 Step 6: 18 + 6 = 24 The answer is 24.

2. Liam collected 35 seashells at the beach on Monday. On Tuesday, he collected 28 more seashells. How many seashells did Liam collect in total? Answer: 63 Solution: Liam collected 35 seashells on Monday. On Tuesday, he collected 28 more seashells. To find the total number of seashells, we add the number from Monday and Tuesday.
   Full step-by-step solution

   Liam collected 35 seashells on Monday. On Tuesday, he collected 28 more seashells. To find the total number of seashells, we add the number from Monday and Tuesday. Step 1: Write the addition expression. 35 + 28 Step 2: Add the ones place digits first. 5 ones + 8 ones = 13 ones 13 ones means 1 ten and 3 ones. Write down the 3 in the ones place and carry over the 1 ten to the tens place. Step 3: Add the tens place digits, including the carry-over. 3 tens (from 35) + 2 tens (from 28) + 1 ten (carried over) = 6 tens Step 4: Combine the tens and ones. 6 tens and 3 ones = 63 So, Liam collected 63 seashells in total.

3. 42 + 29 = ? Answer: 71 Solution: Add the ones digits: 2 + 9 = 11. Write down 1 in the ones place and carry over 1 to the tens place. Add the tens digits: 4 + 2 = 6, plus the carried over 1 makes 7.
   Full step-by-step solution

   Step 1: Add the ones digits: 2 + 9 = 11. Write down 1 in the ones place and carry over 1 to the tens place. Step 2: Add the tens digits: 4 + 2 = 6, plus the carried over 1 makes 7. Step 3: Combine the tens and ones: 70 + 1 = 71. The answer is 71.

4. Look at the pattern of triangles: ▲ ▲ ▲ ▲ ▲ | ▲ ▲ ▲ ▲ ▲ | ▲ ▲ ▲ ▲ ▲. There are 3 rows with 5 triangles in each row. How many triangles are there in total? Answer: 15 Solution: There are 3 rows of triangles. Each row has 5 triangles. To find the total, multiply the number of rows by the number in each row: 3 × 5 3 × 5 = 15 The answer is 15.
   Full step-by-step solution

   Step 1: There are 3 rows of triangles. Step 2: Each row has 5 triangles. Step 3: To find the total, multiply the number of rows by the number in each row: 3 × 5 Step 4: 3 × 5 = 15 The answer is 15.

5. 17 + 9 = ? Answer: 26 Solution: Add the ones place: 7 + 9 = 16. Write down the 6 in the ones place and carry over the 1 to the tens place. Add the tens place, including the carried-over 1: 1 (from 17) + 1 (carried over) = 2.
   Full step-by-step solution

   Step 1: Add the ones place: 7 + 9 = 16. Write down the 6 in the ones place and carry over the 1 to the tens place. Step 2: Add the tens place, including the carried-over 1: 1 (from 17) + 1 (carried over) = 2. Step 3: Combine the tens and ones: 20 + 6 = 26. The answer is 26.

6. Liam collected 45 seashells at the beach on Monday. On Tuesday, he collected 32 more seashells. How many seashells did Liam collect in total? Answer: 77 Solution: Liam collected 45 seashells on Monday. On Tuesday, he collected 32 more seashells. We need to find the total number of seashells collected over both days.
   Full step-by-step solution

   Step 1: Understand the problem. Liam collected 45 seashells on Monday. On Tuesday, he collected 32 more seashells. We need to find the total number of seashells collected over both days. Step 2: Identify the operation. To find the total when combining two amounts, we use addition. Step 3: Write the addition expression. Total seashells = Seashells from Monday + Seashells from Tuesday Total seashells = 45 + 32 Step 4: Perform the addition. First, add the ones place: 5 + 2 = 7 Next, add the tens place: 4 + 3 = 7 So, 45 + 32 = 77 Step 5: State the final answer. Liam collected 77 seashells in total.