Skip Counting

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Answer Key & Explanations

Skip Counting · Grade 2 · Worksheet 3

1. A farmer plants apple trees in rows. Each row has 10 trees. If the farmer has 5 rows of apple trees, how many trees are there in total? Answer: 50 Solution: We know each row has 10 trees, and there are 5 rows. We need to find the total number of trees. Think about the operation.
   Full step-by-step solution

   Step 1: Understand the problem. We know each row has 10 trees, and there are 5 rows. We need to find the total number of trees. Step 2: Think about the operation. If each row has the same number of trees, we can multiply the number of rows by the number of trees per row. Step 3: Write the multiplication. Number of rows = 5 Trees per row = 10 Total trees = 5 × 10 Step 4: Perform the multiplication. 5 × 10 = 50 Step 5: State the final answer. The farmer has 50 apple trees in total.

2. Skip count by 10s: 76, 86, 96, __, 116 Answer: 106 Solution: The pattern is skip counting by 10s, so we add 10 to each number to get the next. Step 2: Start at 96. Step 3: 96 + 10 = 106.
   Full step-by-step solution

   Step 1: The pattern is skip counting by 10s, so we add 10 to each number to get the next. Step 2: Start at 96. Step 3: 96 + 10 = 106. Step 4: Check: 106 + 10 = 116, which matches the next given number. The missing number is 106.

3. 25 + 50 + 75 = ? Answer: 150 Solution: Add 25 and 50. 25 + 50 = 75. Add the result (75) to the remaining number (75).
   Full step-by-step solution

   Step 1: Add 25 and 50. 25 + 50 = 75. Step 2: Add the result (75) to the remaining number (75). 75 + 75 = 150. The answer is 150.

4. Skip count by 5s: 85, 90, 95, __, 105 Answer: 100 Solution: Identify the skip counting pattern. We are counting by 5s, so we add 5 each time. Start at 85.
   Full step-by-step solution

   Step 1: Identify the skip counting pattern. We are counting by 5s, so we add 5 each time. Step 2: Start at 85. Add 5 to get 90. Add 5 to get 95. Add 5 to get the missing number: 95 + 5 = 100. Step 3: Check by adding 5 again: 100 + 5 = 105, which matches the last number given. The answer is 100.

5. Count by 5s: 45, 55, 65, __, 85 Answer: 75 Solution: The pattern is skip counting by 5s, so we add 5 to each number to get the next. Step 2: Start at 65. Step 3: 65 + 5 = 70.
   Full step-by-step solution

   Step 1: The pattern is skip counting by 5s, so we add 5 to each number to get the next. Step 2: Start at 65. Step 3: 65 + 5 = 70. Step 4: 70 + 5 = 75. The missing number is 75.

6. Olivia is drawing a number line. She starts at 125 and skips forward by 100s three times. Where does she land after the third skip? Answer: 425 Solution: Start at 125. First skip of 100: 125 + 100 = 225. Second skip of 100: 225 + 100 = 325.
   Full step-by-step solution

   Step 1: Start at 125. Step 2: First skip of 100: 125 + 100 = 225. Step 3: Second skip of 100: 225 + 100 = 325. Step 4: Third skip of 100: 325 + 100 = 425. The answer is 425.

7. 50 + 100 + 150 = ? Answer: 300 Solution: Add the first two numbers: 50 + 100 = 150. Take the result from Step 1 and add the third number: 150 + 150 = 300. The final answer is 300.
   Full step-by-step solution

   Step 1: Add the first two numbers: 50 + 100 = 150. Step 2: Take the result from Step 1 and add the third number: 150 + 150 = 300. The final answer is 300.