Add, subtract, multiply and divide measurements like 5 ft 8 in

Answer Key - Grade 6 Math Worksheet - Challenge Me

Circle the best answer, or write your answer on the line.

1. 1.

   Ari compares two strips of trim. One is 2 yd 2 ft long. The other is 7 ft 10 in long. Which strip is longer?

   • The 2 yd 2 ft strip, because with 4 ft in a yard it is 10 ft, which is 2 ft 2 in longer.
   • The 7 ft 10 in strip, because 7 is greater than 2.
   • The 2 yd 2 ft strip, because it is 8 ft, which is 2 in longer than 7 ft 10 in.
   • Neither: 2 yd 2 ft is 8 ft, and 7 ft 10 in is nearly 8 ft, so they match.
2. 2.

   Bo weighs two bags of flour. One is labeled 62 oz. The other is labeled 3 lb 14 oz. Which bag is heavier?

   • Neither: 3 lb 14 oz is 62 oz, so the two bags weigh the same.
   • The 62 oz bag, because 62 is greater than 3 and 14.
   • The 3 lb 14 oz bag, because with 20 oz in a pound it is 74 oz.
   • The 62 oz bag, because 3 lb is 48 oz and the 14 oz is small.
3. 3.

   Esme compares two water jugs. One holds 3 gal 1 qt. The other holds 12 qt. Which jug holds more?

   • The 3 gal 1 qt jug, because it holds 13 qt, 1 qt more than 12 qt.
   • The 12 qt jug, because with 3 qt in a gallon the first jug holds 10 qt.
   • Neither: 3 gal is 12 qt, and 1 qt more is too small to matter for two jugs.
   • The 12 qt jug, because 12 is greater than 3.
4. 4.

   Jun compares two tent poles. One is 4 ft 11 in long. The other is 1 yd 2 ft long. Which pole is longer?

   • The 4 ft 11 in pole, because 4 is greater than 1.
   • Neither: 4 ft 11 in is nearly 5 ft, so the poles are about the same.
   • The 4 ft 11 in pole, because with 2 ft in a yard the other pole is 4 ft.
   • The 1 yd 2 ft pole, because it is 60 in, 1 in longer than 59 in.
5. 5.

   Each batch of Kira's soup needs 1 gal 3 qt of broth. The club makes 6 batches over 3 days. How many quarts of broth is that each day?

   14
6. 6.

   Each hiker packs 1 lb 4 oz of trail mix for a 2-day trip. Luz's group has 3 hikers. How many ounces of trail mix does the group eat each day?

   30
7. 7.

   Milo puts trim around 8 windows. Each window needs 2 ft 6 in of trim, and the job takes 4 days. How many inches of trim is that each day?

   60
8. 8.

   Pia adds 3 ft 8 in and 2 ft 9 in and writes 5 ft 17 in. How should the answer be fixed?

   • Regroup: 17 in is 1 ft 5 in, so the answer is 6 ft 5 in.
   • Regroup: 17 in is 1 ft 5 in, so the answer is 5 ft 5 in.
   • It is fine as it is: 3 + 2 = 5 and 8 + 9 = 17, so 5 ft 17 in is the answer.
   • Regroup: 17 in is 1 ten and 7, so the answer is 6 ft 7 in.
9. 9.

   Ren works out 5 ft 2 in − 2 ft 7 in and writes 3 ft 5 in. What is the mistake?

   • 7 in cannot come out of 2 in, so borrow 1 ft: 4 ft 14 in − 2 ft 7 in = 2 ft 7 in.
   • Borrow 12 in but keep 5 ft, so 5 ft 14 in − 2 ft 7 in comes out as 3 ft 7 in.
   • Borrow 1 ft as 10 in to make 4 ft 12 in, so the answer comes out as 2 ft 5 in.
   • Nothing is wrong: 7 − 2 = 5 in is how to subtract when the top inches are smaller.
10. 10.

    Tala multiplies 2 lb 12 oz by 4 and writes 8 lb 48 oz. What is the best way to finish?

    • It is finished: 8 lb 48 oz shows each pound and ounce in the total.
    • Regroup: 48 oz is 4 lb, because 12 oz makes a pound, so the total is 12 lb.
    • Regroup: 48 oz is 3 lb, so the total is 3 lb.
    • Regroup: 48 oz is 3 lb, so the total is 11 lb.