Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 3 - 15 = _____
- 249 - 118 = _____
- 612 - 118 = _____
- 7110 - 45 = _____
(a)
3 -
15 = 2
55 -
15 = 2
45 (b)
Make the denominators the same.
2
49 -
118 = 2
4 x 29 x 2 -
118 = 2
818 -
118 = 2
718 (c)
Make the denominators the same.
6
12 - 1
18 = 6
1 x 42 x 4 - 1
18 = 6
48 - 1
18 = 5
38 (d)
Make the denominators the same.
7
110 -
45 = 7
110 -
4 x 25 x 2 = 6
1110 -
810 = 6
310Answer(s): 2
45, 2
718, 5
38, 6
310