Math Drills
Converting Compound Units Review
2Conversion
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What this worksheet covers
This unit moves back and forth between writing a quantity as a large unit paired with a small one, as in 1 km 2300 m, and writing it in a single unit. Length conversions from km to km and m and from m to m and cm, and capacity conversions from L to L and mL, are practiced in both directions again and again.
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Reading the first decimal place straight off as meters, turning 2.3 km into 2 km 3 m, is the standard error. Any answer where a zero was never filled in should be suspected of it. The reverse direction shifts the places for the same reason, as when 1 L 60 mL is written 1.6 L.
Rewriting a quantity in a small unit paired with a large one, and back again, is practiced here on a new subject, capacity, beyond the length it started with. The conversion between km and m fixed in Length (km and Tape Measure) in grade 3 is the base this rests on. The same skill is needed again before the grade is over, when Speed converts between distance covered per hour and per minute.
- Converting Units of Length · km→km, m3 questions
- Converting Units of Length · km, m→km3 questions
- Converting Units of Length · m→m, cm3 questions
- Converting Units of Length · m, cm→m3 questions
- Converting Capacity Units · L→L, mL3 questions
- Converting Capacity Units · L, mL→L3 questions
Questions & answers
Problems and answers on this worksheet
These are the problems in “Converting Compound Units”, shown with their answers.
(1)3.1km = □ □
Answer: 3km, 100m
(2)8.3km = □ □
Answer: 8km, 300m
(3)1.9km = □ □
Answer: 1km, 900m
(4)8km200m = □
Answer: 8.2km
(5)2km200m = □
Answer: 2.2km
(6)9km200m = □
Answer: 9.2km
(7)3.1m = □ □
Answer: 3m, 10cm
(8)2.3m = □ □
Answer: 2m, 30cm
(9)1.2m = □ □
Answer: 1m, 20cm
(10)6m10cm = □
Answer: 6.1m
(11)8m50cm = □
Answer: 8.5m
(12)3m80cm = □
Answer: 3.8m
(13)5.6L = □ □
Answer: 5L, 600mL
(14)2.4L = □ □
Answer: 2L, 400mL
(15)9.2L = □ □
Answer: 9L, 200mL
(16)1L300mL = □
Answer: 1.3L
(17)4L500mL = □
Answer: 4.5L
(18)4L100mL = □
Answer: 4.1L
