Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 16 x 70 = 16 x _____ x 10
- 75 x 100 = 75 x _____ x 100
- 297 x 8000 = 297 x _____ x 1000
- 1660 x 20000 = 1660 x _____ x 10000
(a)
16 x 70 = 16 x _____ x 10
70 ÷ 10 = 7
(b)
75 x 100 = 75 x _____ x 100
100 ÷ 100 = 1
(c)
297 x 8000 = 297 x _____ x 1000
8000 ÷ 1000 = 8
(d)
1660 x 20000 = 1660 x _____ x 10000
20000 ÷ 10000 = 2
Answer(s): 7, 1, 8, 2