Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 7 - 12 = _____
- 448 - 132 = _____
- 924 - 438 = _____
- 3316 - 58 = _____
(a)
7 -
12 = 6
22 -
12 = 6
12 (b)
Make the denominators the same.
4
48 -
132 = 4
4 x 48 x 4 -
132 = 4
1632 -
132 = 4
1532 (c)
Make the denominators the same.
9
24 - 4
38 = 9
2 x 24 x 2 - 4
38 = 9
48 - 4
38 = 5
18 (d)
Make the denominators the same.
3
316 -
58 = 3
316 -
5 x 28 x 2 = 2
1916 -
1016 = 2
916Answer(s): 6
12, 4
1532, 5
18, 2
916