Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 5 - 49 = _____
- 548 - 132 = _____
- 912 - 438 = _____
- 7221 - 57 = _____
(a)
5 -
49 = 4
99 -
49 = 4
59 (b)
Make the denominators the same.
5
48 -
132 = 5
4 x 48 x 4 -
132 = 5
1632 -
132 = 5
1532 (c)
Make the denominators the same.
9
12 - 4
38 = 9
1 x 42 x 4 - 4
38 = 9
48 - 4
38 = 5
18 (d)
Make the denominators the same.
7
221 -
57 = 7
221 -
5 x 37 x 3 = 6
2321 -
1521 = 6
821Answer(s): 4
59, 5
1532, 5
18, 6
821