Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 8 - 58 = _____
- 245 - 110 = _____
- 435 - 1115 = _____
- 9114 - 67 = _____
(a)
8 -
58 = 7
88 -
58 = 7
38 (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
35 - 1
115 = 4
3 x 35 x 3 - 1
115 = 4
915 - 1
115 = 3
815 (d)
Make the denominators the same.
9
114 -
67 = 9
114 -
6 x 27 x 2 = 8
1514 -
1214 = 8
314Answer(s): 7
38, 2
710, 3
815, 8
314