Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 40 x 30 = _____
- 400 x 70 = _____
- 3000 x 400 = _____
- 3000 x 7000 = _____
(a)
40 x 30 = 1200
(b)
400 x 70 = 28000
(c)
3000 x 400 = 1200000
(d)
3000 x 7000 = 21000000
Answer(s): 1200, 28000, 1200000, 21000000