Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 2 - 78 = _____
- 438 - 116 = _____
- 915 - 5320 = _____
- 8114 - 57 = _____
(a)
2 -
78 = 1
88 -
78 = 1
18 (b)
Make the denominators the same.
4
38 -
116 = 4
3 x 28 x 2 -
116 = 4
616 -
116 = 4
516 (c)
Make the denominators the same.
9
15 - 5
320 = 9
1 x 45 x 4 - 5
320 = 9
420 - 5
320 = 4
120 (d)
Make the denominators the same.
8
114 -
57 = 8
114 -
5 x 27 x 2 = 7
1514 -
1014 = 7
514Answer(s): 1
18, 4
516, 4
120, 7
514