Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 5 - 79 = _____
- 335 - 120 = _____
- 434 - 118 = _____
- 8116 - 78 = _____
(a)
5 -
79 = 4
99 -
79 = 4
29 (b)
Make the denominators the same.
3
35 -
120 = 3
3 x 45 x 4 -
120 = 3
1220 -
120 = 3
1120 (c)
Make the denominators the same.
4
34 - 1
18 = 4
3 x 24 x 2 - 1
18 = 4
68 - 1
18 = 3
58 (d)
Make the denominators the same.
8
116 -
78 = 8
116 -
7 x 28 x 2 = 7
1716 -
1416 = 7
316Answer(s): 4
29, 3
1120, 3
58, 7
316