Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 5 - 811 = _____
- 239 - 127 = _____
- 934 - 338 = _____
- 6221 - 47 = _____
(a)
5 -
811 = 4
1111 -
811 = 4
311 (b)
Make the denominators the same.
2
39 -
127 = 2
3 x 39 x 3 -
127 = 2
927 -
127 = 2
827 (c)
Make the denominators the same.
9
34 - 3
38 = 9
3 x 24 x 2 - 3
38 = 9
68 - 3
38 = 6
38 (d)
Make the denominators the same.
6
221 -
47 = 6
221 -
4 x 37 x 3 = 5
2321 -
1221 = 5
1121Answer(s): 4
311, 2
827, 6
38, 5
1121