Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 9 x 80 = _____
- 80 x 4 = _____
- 12 x 12 = _____
- 84 x 10 = _____
(a)
9 x 80 = 720
(b)
80 x 4 = 320
(c)
12 x 12 = 144
(d)
84 x 10 = 840
Answer(s): 720, 320, 144, 840