Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 9 - 89 = _____
- 536 - 112 = _____
- 313 - 229 = _____
- 9221 - 67 = _____
(a)
9 -
89 = 8
99 -
89 = 8
19 (b)
Make the denominators the same.
5
36 -
112 = 5
3 x 26 x 2 -
112 = 5
612 -
112 = 5
512 (c)
Make the denominators the same.
3
13 - 2
29 = 3
1 x 33 x 3 - 2
29 = 3
39 - 2
29 = 1
19 (d)
Make the denominators the same.
9
221 -
67 = 9
221 -
6 x 37 x 3 = 8
2321 -
1821 = 8
521Answer(s): 8
19, 5
512, 1
19, 8
521