Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 6 - 12 = _____
- 246 - 118 = _____
- 723 - 2312 = _____
- 2221 - 67 = _____
(a)
6 -
12 = 5
22 -
12 = 5
12 (b)
Make the denominators the same.
2
46 -
118 = 2
4 x 36 x 3 -
118 = 2
1218 -
118 = 2
1118 (c)
Make the denominators the same.
7
23 - 2
312 = 7
2 x 43 x 4 - 2
312 = 7
812 - 2
312 = 5
512 (d)
Make the denominators the same.
2
221 -
67 = 2
221 -
6 x 37 x 3 = 1
2321 -
1821 = 1
521Answer(s): 5
12, 2
1118, 5
512, 1
521