Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 3 - 37 = _____
- 4410 - 120 = _____
- 914 - 3212 = _____
- 6121 - 67 = _____
(a)
3 -
37 = 2
77 -
37 = 2
47 (b)
Make the denominators the same.
4
410 -
120 = 4
4 x 210 x 2 -
120 = 4
820 -
120 = 4
720 (c)
Make the denominators the same.
9
14 - 3
212 = 9
1 x 34 x 3 - 3
212 = 9
312 - 3
212 = 6
112 (d)
Make the denominators the same.
6
121 -
67 = 6
121 -
6 x 37 x 3 = 5
2221 -
1821 = 5
421Answer(s): 2
47, 4
720, 6
112, 5
421