Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 6 - 16 = _____
- 439 - 127 = _____
- 834 - 1316 = _____
- 2121 - 67 = _____
(a)
6 -
16 = 5
66 -
16 = 5
56 (b)
Make the denominators the same.
4
39 -
127 = 4
3 x 39 x 3 -
127 = 4
927 -
127 = 4
827 (c)
Make the denominators the same.
8
34 - 1
316 = 8
3 x 44 x 4 - 1
316 = 8
1216 - 1
316 = 7
916 (d)
Make the denominators the same.
2
121 -
67 = 2
121 -
6 x 37 x 3 = 1
2221 -
1821 = 1
421Answer(s): 5
56, 4
827, 7
916, 1
421