Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 9 - 811 = _____
- 545 - 110 = _____
- 712 - 114 = _____
- 4314 - 67 = _____
(a)
9 -
811 = 8
1111 -
811 = 8
311 (b)
Make the denominators the same.
5
45 -
110 = 5
4 x 25 x 2 -
110 = 5
810 -
110 = 5
710 (c)
Make the denominators the same.
7
12 - 1
14 = 7
1 x 22 x 2 - 1
14 = 7
24 - 1
14 = 6
14 (d)
Make the denominators the same.
4
314 -
67 = 4
314 -
6 x 27 x 2 = 3
1714 -
1214 = 3
514Answer(s): 8
311, 5
710, 6
14, 3
514