Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 2 - 29 = _____
- 227 - 121 = _____
- 414 - 218 = _____
- 9116 - 78 = _____
(a)
2 -
29 = 1
99 -
29 = 1
79 (b)
Make the denominators the same.
2
27 -
121 = 2
2 x 37 x 3 -
121 = 2
621 -
121 = 2
521 (c)
Make the denominators the same.
4
14 - 2
18 = 4
1 x 24 x 2 - 2
18 = 4
28 - 2
18 = 2
18 (d)
Make the denominators the same.
9
116 -
78 = 9
116 -
7 x 28 x 2 = 8
1716 -
1416 = 8
316Answer(s): 1
79, 2
521, 2
18, 8
316