Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 9 - 811 = _____
- 528 - 124 = _____
- 834 - 4212 = _____
- 4221 - 57 = _____
(a)
9 -
811 = 8
1111 -
811 = 8
311 (b)
Make the denominators the same.
5
28 -
124 = 5
2 x 38 x 3 -
124 = 5
624 -
124 = 5
524 (c)
Make the denominators the same.
8
34 - 4
212 = 8
3 x 34 x 3 - 4
212 = 8
912 - 4
212 = 4
712 (d)
Make the denominators the same.
4
221 -
57 = 4
221 -
5 x 37 x 3 = 3
2321 -
1521 = 3
821Answer(s): 8
311, 5
524, 4
712, 3
821