Non-Standard Units

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Answer Key & Explanations

Non-Standard Units · Grade 1 · Worksheet 3

1. The book is 8 crayons long. How many crayons long is it? Answer: 8 Solution: The problem states: 'The book is 8 crayons long.' This means the length of the book is measured in crayons, and the measurement is 8.
   Full step-by-step solution

   The problem states: 'The book is 8 crayons long.' This means the length of the book is measured in crayons, and the measurement is 8. Therefore, the book is 8 crayons long.

2. Tane is measuring his toy train track using his hand span. He places his hand end over end along the track and counts 7 hand spans. How many hand spans long is Tane's toy train track? Answer: 7 Solution: Tane places his hand at one end of the toy train track. Step 2: He moves his hand along, placing it end over end, and counts each time. Step 3: He counts 7 hand spans in total.
   Full step-by-step solution

   Step 1: Tane places his hand at one end of the toy train track. Step 2: He moves his hand along, placing it end over end, and counts each time. Step 3: He counts 7 hand spans in total. Step 4: The number of hand spans is the length of the track in those units. The answer is 7.

3. The pencil is 7 paper clips long. How long is it? Answer: 7 Solution: The problem states: 'The pencil is 7 paper clips long.' This means the length of the pencil is the same as 7 paper clips placed end to end.
   Full step-by-step solution

   The problem states: 'The pencil is 7 paper clips long.' This means the length of the pencil is the same as 7 paper clips placed end to end. Therefore, the pencil is 7 paper clips long.

4. The classroom door is 42 crayons long. How many crayons long is it? Answer: 42 Solution: Read the problem carefully: 'The classroom door is 42 crayons long.' This means when we measured the door using crayons placed end to end, it took 42 crayons to match the door's length.
   Full step-by-step solution

   Step 1: Read the problem carefully: 'The classroom door is 42 crayons long.' Step 2: This means when we measured the door using crayons placed end to end, it took 42 crayons to match the door's length. Step 3: Therefore, the classroom door is 42 crayons long. The answer is 42.

5. Sarah is measuring her pencil using paper clips. The pencil is as long as 6 paper clips placed end to end. How many paper clips long is the pencil? Answer: 6 Solution: Sarah is measuring her pencil using paper clips. The problem says the pencil is as long as 6 paper clips placed end to end. Interpret the measurement.
   Full step-by-step solution

   Step 1: Understand the problem. Sarah is measuring her pencil using paper clips. The problem says the pencil is as long as 6 paper clips placed end to end. Step 2: Interpret the measurement. If 6 paper clips placed end to end equal the pencil's length, then the pencil's length in terms of paper clips is exactly 6. Step 3: State the answer. Therefore, the pencil is 6 paper clips long. Final Answer: 6

6. Mere is measuring the length of her new rug using her toy trains. She places the trains end to end along the rug and counts 20 trains. How many toy trains long is Mere's rug? Answer: 20 Solution: Mere lines up toy trains from one end of the rug to the other. She counts the trains she used: 20 trains. The number of trains equals the length of the rug in train units.
   Full step-by-step solution

   Step 1: Mere lines up toy trains from one end of the rug to the other. Step 2: She counts the trains she used: 20 trains. Step 3: The number of trains equals the length of the rug in train units. Step 4: Therefore, the rug is 20 toy trains long. The answer is 20.

7. Liam is measuring his desk using paper clips. He lines up paper clips end to end and finds that the desk is 8 paper clips long. Then he measures the same desk using crayons and finds it is 6 crayons long. How many more paper clips than crayons did Liam use to measure his desk? Answer: 2 Solution: 1. Liam measures the desk with paper clips and finds it is 8 paper clips long. Desk length = 8 paper clips.
   Full step-by-step solution

   Let's go step by step. 1. Liam measures the desk with paper clips and finds it is 8 paper clips long. That means: Desk length = 8 paper clips. 2. Liam measures the same desk with crayons and finds it is 6 crayons long. That means: Desk length = 6 crayons. 3. The problem asks: "How many more paper clips than crayons did Liam use to measure his desk?" This means we compare the number of units used for the same desk. 4. Number of paper clips used = 8 Number of crayons used = 6 5. To find how many more paper clips than crayons: Subtract the number of crayons from the number of paper clips: 8 − 6 = 2 6. So, Liam used 2 more paper clips than crayons. Final answer: 2

8. Olivia is measuring the length of her jump rope using her hand spans. She places her hand end to end along the jump rope and counts 10 hand spans. How many hand spans long is Olivia's jump rope? Answer: 10 Solution: Olivia places her hand spans end to end along the jump rope. She counts the number of hand spans she uses. She counts 10 hand spans.
   Full step-by-step solution

   Step 1: Olivia places her hand spans end to end along the jump rope. Step 2: She counts the number of hand spans she uses. Step 3: She counts 10 hand spans. Step 4: The number of hand spans equals the length of the jump rope in hand spans. The answer is 10.

9. The whiteboard is 18 markers long. How many markers long is it? Answer: 18 Solution: Read the problem carefully: 'The whiteboard is 18 markers long.' This means when we measured the whiteboard using markers placed end to end, it took 18 markers to match the whiteboard's length.
   Full step-by-step solution

   Step 1: Read the problem carefully: 'The whiteboard is 18 markers long.' Step 2: This means when we measured the whiteboard using markers placed end to end, it took 18 markers to match the whiteboard's length. Step 3: Therefore, the whiteboard is 18 markers long. The answer is 18.