Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 4 - 512 = _____
- 3310 - 140 = _____
- 712 - 518 = _____
- 2316 - 58 = _____
(a)
4 -
512 = 3
1212 -
512 = 3
712 (b)
Make the denominators the same.
3
310 -
140 = 3
3 x 410 x 4 -
140 = 3
1240 -
140 = 3
1140 (c)
Make the denominators the same.
7
12 - 5
18 = 7
1 x 42 x 4 - 5
18 = 7
48 - 5
18 = 2
38 (d)
Make the denominators the same.
2
316 -
58 = 2
316 -
5 x 28 x 2 = 1
1916 -
1016 = 1
916Answer(s): 3
712, 3
1140, 2
38, 1
916