Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 3 - 57 = _____
- 528 - 132 = _____
- 723 - 2112 = _____
- 4116 - 58 = _____
(a)
3 -
57 = 2
77 -
57 = 2
27 (b)
Make the denominators the same.
5
28 -
132 = 5
2 x 48 x 4 -
132 = 5
832 -
132 = 5
732 (c)
Make the denominators the same.
7
23 - 2
112 = 7
2 x 43 x 4 - 2
112 = 7
812 - 2
112 = 5
712 (d)
Make the denominators the same.
4
116 -
58 = 4
116 -
5 x 28 x 2 = 3
1716 -
1016 = 3
716Answer(s): 2
27, 5
732, 5
712, 3
716