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

(a) 500 - 9 = _____

(b) 900 - 20 = _____

(c) 630 - 220 = _____

(a) 900 - 91 = _____
1 m

Click button first when a symbol is required. X

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

(a) 500 - 9 = _____

(b) 900 - 20 = _____

(c) 630 - 220 = _____

(a) 900 - 91 = _____