Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 5 - 17 = _____
- 345 - 110 = _____
- 615 - 5110 = _____
- 9121 - 67 = _____
(a)
5 -
17 = 4
77 -
17 = 4
67 (b)
Make the denominators the same.
3
45 -
110 = 3
4 x 25 x 2 -
110 = 3
810 -
110 = 3
710 (c)
Make the denominators the same.
6
15 - 5
110 = 6
1 x 25 x 2 - 5
110 = 6
210 - 5
110 = 1
110 (d)
Make the denominators the same.
9
121 -
67 = 9
121 -
6 x 37 x 3 = 8
2221 -
1821 = 8
421Answer(s): 4
67, 3
710, 1
110, 8
421