Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 3 - 78 = _____
- 245 - 110 = _____
- 424 - 1112 = _____
- 5316 - 58 = _____
(a)
3 -
78 = 2
88 -
78 = 2
18 (b)
Make the denominators the same.
2
45 -
110 = 2
4 x 25 x 2 -
110 = 2
810 -
110 = 2
710 (c)
Make the denominators the same.
4
24 - 1
112 = 4
2 x 34 x 3 - 1
112 = 4
612 - 1
112 = 3
512 (d)
Make the denominators the same.
5
316 -
58 = 5
316 -
5 x 28 x 2 = 4
1916 -
1016 = 4
916Answer(s): 2
18, 2
710, 3
512, 4
916