Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 38 = ?64
- 17 = 4?
- 12 = 510 = ?50
- 18 = 216 = 9?
(a)
38 =
3 x 88 x 8 =
2464 (b)
17 =
1 x 47 x 4 =
428 (c)
12 =
510 =
5 x 510 x 5 =
2550 (d)
18 =
216 =
1 x 98 x 9 =
972Answer(s): 24, 28, 25, 72