Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 4 - 13 = _____
- 548 - 116 = _____
- 624 - 138 = _____
- 2116 - 58 = _____
(a)
4 -
13 = 3
33 -
13 = 3
23 (b)
Make the denominators the same.
5
48 -
116 = 5
4 x 28 x 2 -
116 = 5
816 -
116 = 5
716 (c)
Make the denominators the same.
6
24 - 1
38 = 6
2 x 24 x 2 - 1
38 = 6
48 - 1
38 = 5
18 (d)
Make the denominators the same.
2
116 -
58 = 2
116 -
5 x 28 x 2 = 1
1716 -
1016 = 1
716Answer(s): 3
23, 5
716, 5
18, 1
716