Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- If A x A = 81, find A.
- 15 x 15 x 15 = ______
- 7 x 25 = ______
- 5 x 800 = ______
(a)
9 x 9 = 81
(b)
15 x 15 x 15 = 3375
(c)
7 x 25 = 175
(d)
5 x 800= 4000
Answer(s): 9, 3375, 175, 4000