6th Grade Math Textbook, Progress

Compute Customary Units

13-5

To addor subtractcustomary units: Add or subtract likeunits. Regroup to rename one unit to another, as needed.

8 5 0 5 ft 7 in. 9 gal 1 qt 0 8 ft 9 in. 4 gal 3 qt 13 ft 16 in. 4 gal 2 qt

13 ft 16 in.13 ft1 ft4 in.

14 ft 4 in.

To multiplywith customary units:

Multiply by each unit. Regroup to rename one unit to another. or Rename all units as like units. Multiply. Regroup.

To dividewith customary units:

Rename all units as like units. Divide. Regroup.

9 gal 1 qt

8 gal1 gal1 qt

8 gal 4 qt1 qt

8 gal 5 qt

16 in.12 in.4 in.

16 in. 1 ft 4 in.

00 9 ft 4 in. 27 ft 1 3 27 ft 12 in.27 ft1 ft 27 ft 12 in.28 ft

9 ft 4 in.(9 12 ) in.4 in. 9 ft 4 in.108 in.4 in.112 in. 112 in. 3 336 in. 112 in. 3 (336 12 ) ft 112 in. 3 28 ft

3 lb 8 oz 2 2 3 lb 8 oz(3 16 ) oz8 oz 23 lb 8 oz48 oz8 oz56 oz lb 56 oz 2 28 oz lb 56 oz 2 (28 16 ) lb lb 56 oz 2 1 lb 12 oz

?

Think 12 in.1 ft

Think 1 lb16 oz

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