Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 7 - 16 = _____
- 247 - 128 = _____
- 812 - 514 = _____
- 5316 - 58 = _____
(a)
7 -
16 = 6
66 -
16 = 6
56 (b)
Make the denominators the same.
2
47 -
128 = 2
4 x 47 x 4 -
128 = 2
1628 -
128 = 2
1528 (c)
Make the denominators the same.
8
12 - 5
14 = 8
1 x 22 x 2 - 5
14 = 8
24 - 5
14 = 3
14 (d)
Make the denominators the same.
5
316 -
58 = 5
316 -
5 x 28 x 2 = 4
1916 -
1016 = 4
916Answer(s): 6
56, 2
1528, 3
14, 4
916