Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 5 - 17 = _____
- 529 - 127 = _____
- 715 - 4320 = _____
- 3221 - 67 = _____
(a)
5 -
17 = 4
77 -
17 = 4
67 (b)
Make the denominators the same.
5
29 -
127 = 5
2 x 39 x 3 -
127 = 5
627 -
127 = 5
527 (c)
Make the denominators the same.
7
15 - 4
320 = 7
1 x 45 x 4 - 4
320 = 7
420 - 4
320 = 3
120 (d)
Make the denominators the same.
3
221 -
67 = 3
221 -
6 x 37 x 3 = 2
2321 -
1821 = 2
521Answer(s): 4
67, 5
527, 3
120, 2
521