Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8 x 80 = _____
- 90 x 5 = _____
- 11 x 11 = _____
- 84 x 10 = _____
(a)
8 x 80 = 640
(b)
90 x 5 = 450
(c)
11 x 11 = 121
(d)
84 x 10 = 840
Answer(s): 640, 450, 121, 840