Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 4 - 37 = _____
- 345 - 110 = _____
- 813 - 319 = _____
- 4121 - 67 = _____
(a)
4 -
37 = 3
77 -
37 = 3
47 (b)
Make the denominators the same.
3
45 -
110 = 3
4 x 25 x 2 -
110 = 3
810 -
110 = 3
710 (c)
Make the denominators the same.
8
13 - 3
19 = 8
1 x 33 x 3 - 3
19 = 8
39 - 3
19 = 5
29 (d)
Make the denominators the same.
4
121 -
67 = 4
121 -
6 x 37 x 3 = 3
2221 -
1821 = 3
421Answer(s): 3
47, 3
710, 5
29, 3
421