Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 2 - 17 = _____
- 4410 - 120 = _____
- 535 - 4310 = _____
- 6221 - 57 = _____
(a)
2 -
17 = 1
77 -
17 = 1
67 (b)
Make the denominators the same.
4
410 -
120 = 4
4 x 210 x 2 -
120 = 4
820 -
120 = 4
720 (c)
Make the denominators the same.
5
35 - 4
310 = 5
3 x 25 x 2 - 4
310 = 5
610 - 4
310 = 1
310 (d)
Make the denominators the same.
6
221 -
57 = 6
221 -
5 x 37 x 3 = 5
2321 -
1521 = 5
821Answer(s): 1
67, 4
720, 1
310, 5
821