Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 9 - 910 = _____
- 225 - 120 = _____
- 615 - 2110 = _____
- 3314 - 67 = _____
(a)
9 -
910 = 8
1010 -
910 = 8
110 (b)
Make the denominators the same.
2
25 -
120 = 2
2 x 45 x 4 -
120 = 2
820 -
120 = 2
720 (c)
Make the denominators the same.
6
15 - 2
110 = 6
1 x 25 x 2 - 2
110 = 6
210 - 2
110 = 4
110 (d)
Make the denominators the same.
3
314 -
67 = 3
314 -
6 x 27 x 2 = 2
1714 -
1214 = 2
514Answer(s): 8
110, 2
720, 4
110, 2
514