Check subtraction using addition

To describe the special relationship between addition and subtraction, we say that they are inverse operations

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Views #: 532
Questions #: 5
Pass Score: 80.0%
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If a subtraction is done correctly, the sum of the difference and the subtrahend will always equal the minuend

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Check the following subtraction

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9 – 4 = 5 because 5 + 4 = (1)

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Check the following subtraction

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25 – 15 = 10 because 10 + 15 = (1)

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Check the following subtraction

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100 – 1 = 99 because 99 + 1 = (1)

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Check the following subtraction

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3,682 – 1954 = 1,728 because 1,728 + 1954 = (1)

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0
sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC
Keywords
Year 3