Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 5 - 37 = _____
- 539 - 127 = _____
- 735 - 2120 = _____
- 9121 - 67 = _____
(a)
5 -
37 = 4
77 -
37 = 4
47 (b)
Make the denominators the same.
5
39 -
127 = 5
3 x 39 x 3 -
127 = 5
927 -
127 = 5
827 (c)
Make the denominators the same.
7
35 - 2
120 = 7
3 x 45 x 4 - 2
120 = 7
1220 - 2
120 = 5
1120 (d)
Make the denominators the same.
9
121 -
67 = 9
121 -
6 x 37 x 3 = 8
2221 -
1821 = 8
421Answer(s): 4
47, 5
827, 5
1120, 8
421