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


(a) 90 + 30 = _____

(b) 74 + 74 = _____

(c) 55 + 77 = _____

(d) 21 + 21 + 21 = _____
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) 90 + 30 = _____

(b) 74 + 74 = _____

(c) 55 + 77 = _____

(d) 21 + 21 + 21 = _____