Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 3 - 25 = _____
- 237 - 114 = _____
- 712 - 318 = _____
- 7116 - 78 = _____
(a)
3 -
25 = 2
55 -
25 = 2
35 (b)
Make the denominators the same.
2
37 -
114 = 2
3 x 27 x 2 -
114 = 2
614 -
114 = 2
514 (c)
Make the denominators the same.
7
12 - 3
18 = 7
1 x 42 x 4 - 3
18 = 7
48 - 3
18 = 4
38 (d)
Make the denominators the same.
7
116 -
78 = 7
116 -
7 x 28 x 2 = 6
1716 -
1416 = 6
316Answer(s): 2
35, 2
514, 4
38, 6
316