Question
Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)

(a) 40 - 30 = _____

(b) 87 - 44 = _____

(c) 73 - 39 = _____

(d) 55 - 22 = _____
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Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)

(a) 40 - 30 = _____

(b) 87 - 44 = _____

(c) 73 - 39 = _____

(d) 55 - 22 = _____