Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 8 - 56 = _____
- 428 - 132 = _____
- 725 - 5215 = _____
- 8110 - 45 = _____
(a)
8 -
56 = 7
66 -
56 = 7
16 (b)
Make the denominators the same.
4
28 -
132 = 4
2 x 48 x 4 -
132 = 4
832 -
132 = 4
732 (c)
Make the denominators the same.
7
25 - 5
215 = 7
2 x 35 x 3 - 5
215 = 7
615 - 5
215 = 2
415 (d)
Make the denominators the same.
8
110 -
45 = 8
110 -
4 x 25 x 2 = 7
1110 -
810 = 7
310Answer(s): 7
16, 4
732, 2
415, 7
310