Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 7 - 112 = _____
- 437 - 121 = _____
- 812 - 314 = _____
- 2121 - 47 = _____
(a)
7 -
112 = 6
1212 -
112 = 6
1112 (b)
Make the denominators the same.
4
37 -
121 = 4
3 x 37 x 3 -
121 = 4
921 -
121 = 4
821 (c)
Make the denominators the same.
8
12 - 3
14 = 8
1 x 22 x 2 - 3
14 = 8
24 - 3
14 = 5
14 (d)
Make the denominators the same.
2
121 -
47 = 2
121 -
4 x 37 x 3 = 1
2221 -
1221 = 1
1021Answer(s): 6
1112, 4
821, 5
14, 1
1021