Free Printable Explain how constant difference can make written calculations more efficient | Exit Quiz

Worksheets

Name

Class

Date

Which of the following expressions is not equivalent to the others?

57 − 51

56 − 50

55 − 45

54 − 48

53 − 47

Which of the following expressions is not equivalent to the others?

248 − 203

249 − 204

250 − 205

250 − 206

252 − 207

Match the expression with the adjustment to the minuend and subtrahend that will make them more efficient for calculation.

− 1

81 − 24

+ 1

69 − 43

− 2

52 − 37

+ 3

65 − 47

Use adjustment of the minuend and subtrahend followed by your understanding of place value. 20.58 − 5.96 = (a)

Use adjustment of the minuend and subtrahend followed by partitioning to calculate the following subtraction. 70,559 − 54,504 = (a)

Use adjustment followed by a written procedure to calculate the following. 40,000 − 2,654 = (a)

100 %

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