Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 8 - 18 = _____
- 448 - 132 = _____
- 834 - 2316 = _____
- 9110 - 45 = _____
(a)
8 -
18 = 7
88 -
18 = 7
78 (b)
Make the denominators the same.
4
48 -
132 = 4
4 x 48 x 4 -
132 = 4
1632 -
132 = 4
1532 (c)
Make the denominators the same.
8
34 - 2
316 = 8
3 x 44 x 4 - 2
316 = 8
1216 - 2
316 = 6
916 (d)
Make the denominators the same.
9
110 -
45 = 9
110 -
4 x 25 x 2 = 8
1110 -
810 = 8
310Answer(s): 7
78, 4
1532, 6
916, 8
310