Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 3 - 512 = _____
- 436 - 112 = _____
- 735 - 2115 = _____
- 3221 - 67 = _____
(a)
3 -
512 = 2
1212 -
512 = 2
712 (b)
Make the denominators the same.
4
36 -
112 = 4
3 x 26 x 2 -
112 = 4
612 -
112 = 4
512 (c)
Make the denominators the same.
7
35 - 2
115 = 7
3 x 35 x 3 - 2
115 = 7
915 - 2
115 = 5
815 (d)
Make the denominators the same.
3
221 -
67 = 3
221 -
6 x 37 x 3 = 2
2321 -
1821 = 2
521Answer(s): 2
712, 4
512, 5
815, 2
521