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Subtraction practice

Subtract compound units

Subtract feet and inches, pounds and ounces, hours and minutes, minutes and seconds, or yards and quarter-feet using the correct unit exchange.

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Worksheet · LetterWorksheet · A4
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Write like units in the same column. If needed, exchange one larger unit, then subtract the smaller and larger units separately.

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US Letter

Student worksheetWorksheet with answers

A4

Student worksheetWorksheet with answers
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Learning objective

What this activity builds

Subtract compound measurements by regrouping one larger unit into the correct number of smaller units.

Worked example

What is 5 h 20 min − 2 h 45 min?

2 h 35 min

Exchange one hour for 60 minutes: 4 h 80 min − 2 h 45 min = 2 h 35 min.

Teaching notes

Make the practice count

  • Display the selected conversion on the page or review it before practice.
  • Say the units with every partial result so numbers are not combined across unlike columns.
  • For yards, exchange one yard for 3.00 feet and keep quarter-foot values exact.

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Configured PDF · Subtracting Irregular Units · US Letter

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Math SheetNameScore/ 15TeacherDateSubtracting Irregular UnitsSubtract each pair of measurements. Exchange one larger unit when the smaller units require borrowing.1.67 min 49 sec- 12 min 48 sec2.45 hr 49 min- 10 hr 40 min3.92 ft 10 in- 69 ft 6 in4.81 lb 8 oz- 38 lb 4 oz5.89 min 51 sec- 32 min 48 sec6.46 min 55 sec- 13 min 22 sec7.88 ft 7 in- 58 ft 6 in8.90 ft 10 in- 78 ft 10 in9.99 hr 57 min- 97 hr 5 min10.98 min 46 sec- 91 min 2 sec11.94 lb 11 oz- 64 lb 9 oz12.87 lb 4 oz- 86 lb 1 oz13.75 ft 8 in- 61 ft 1 in14.74 lb 12 oz- 60 lb 4 oz15.94 hr 53 min- 31 hr 10 minmath-sheet.comPage 1 / 1

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