Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 4 - 25 = _____
- 245 - 110 = _____
- 712 - 114 = _____
- 3110 - 45 = _____
(a)
4 -
25 = 3
55 -
25 = 3
35 (b)
Make the denominators the same.
2
45 -
110 = 2
4 x 25 x 2 -
110 = 2
810 -
110 = 2
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.
3
110 -
45 = 3
110 -
4 x 25 x 2 = 2
1110 -
810 = 2
310Answer(s): 3
35, 2
710, 6
14, 2
310