Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 34 = ?20
- 78 = 14?
- 23 = 69 = ?27
- 13 = 26 = 4?
(a)
34 =
3 x 54 x 5 =
1520 (b)
78 =
7 x 28 x 2 =
1416 (c)
23 =
69 =
6 x 39 x 3 =
1827 (d)
13 =
26 =
1 x 43 x 4 =
412Answer(s): 15, 16, 18, 12