Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 8 - 56 = _____
- 245 - 110 = _____
- 934 - 538 = _____
- 2114 - 67 = _____
(a)
8 -
56 = 7
66 -
56 = 7
16 (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.
9
34 - 5
38 = 9
3 x 24 x 2 - 5
38 = 9
68 - 5
38 = 4
38 (d)
Make the denominators the same.
2
114 -
67 = 2
114 -
6 x 27 x 2 = 1
1514 -
1214 = 1
314Answer(s): 7
16, 2
710, 4
38, 1
314