Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 9 - 78 = _____
- 429 - 136 = _____
- 634 - 438 = _____
- 3221 - 57 = _____
(a)
9 -
78 = 8
88 -
78 = 8
18 (b)
Make the denominators the same.
4
29 -
136 = 4
2 x 49 x 4 -
136 = 4
836 -
136 = 4
736 (c)
Make the denominators the same.
6
34 - 4
38 = 6
3 x 24 x 2 - 4
38 = 6
68 - 4
38 = 2
38 (d)
Make the denominators the same.
3
221 -
57 = 3
221 -
5 x 37 x 3 = 2
2321 -
1521 = 2
821Answer(s): 8
18, 4
736, 2
38, 2
821