Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 3 - 13 = _____
- 426 - 124 = _____
- 634 - 438 = _____
- 6221 - 67 = _____
(a)
3 -
13 = 2
33 -
13 = 2
23 (b)
Make the denominators the same.
4
26 -
124 = 4
2 x 46 x 4 -
124 = 4
824 -
124 = 4
724 (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.
6
221 -
67 = 6
221 -
6 x 37 x 3 = 5
2321 -
1821 = 5
521Answer(s): 2
23, 4
724, 2
38, 5
521