Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 5 - 29 = _____
- 349 - 118 = _____
- 912 - 218 = _____
- 9110 - 45 = _____
(a)
5 -
29 = 4
99 -
29 = 4
79 (b)
Make the denominators the same.
3
49 -
118 = 3
4 x 29 x 2 -
118 = 3
818 -
118 = 3
718 (c)
Make the denominators the same.
9
12 - 2
18 = 9
1 x 42 x 4 - 2
18 = 9
48 - 2
18 = 7
38 (d)
Make the denominators the same.
9
110 -
45 = 9
110 -
4 x 25 x 2 = 8
1110 -
810 = 8
310Answer(s): 4
79, 3
718, 7
38, 8
310