Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 8 - 14 = _____
- 546 - 118 = _____
- 612 - 218 = _____
- 7221 - 57 = _____
(a)
8 -
14 = 7
44 -
14 = 7
34 (b)
Make the denominators the same.
5
46 -
118 = 5
4 x 36 x 3 -
118 = 5
1218 -
118 = 5
1118 (c)
Make the denominators the same.
6
12 - 2
18 = 6
1 x 42 x 4 - 2
18 = 6
48 - 2
18 = 4
38 (d)
Make the denominators the same.
7
221 -
57 = 7
221 -
5 x 37 x 3 = 6
2321 -
1521 = 6
821Answer(s): 7
34, 5
1118, 4
38, 6
821