Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 7 - 13 = _____
- 346 - 118 = _____
- 413 - 2312 = _____
- 6110 - 45 = _____
(a)
7 -
13 = 6
33 -
13 = 6
23 (b)
Make the denominators the same.
3
46 -
118 = 3
4 x 36 x 3 -
118 = 3
1218 -
118 = 3
1118 (c)
Make the denominators the same.
4
13 - 2
312 = 4
1 x 43 x 4 - 2
312 = 4
412 - 2
312 = 2
112 (d)
Make the denominators the same.
6
110 -
45 = 6
110 -
4 x 25 x 2 = 5
1110 -
810 = 5
310Answer(s): 6
23, 3
1118, 2
112, 5
310