Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 3 - 710 = _____
- 328 - 124 = _____
- 612 - 238 = _____
- 5116 - 78 = _____
(a)
3 -
710 = 2
1010 -
710 = 2
310 (b)
Make the denominators the same.
3
28 -
124 = 3
2 x 38 x 3 -
124 = 3
624 -
124 = 3
524 (c)
Make the denominators the same.
6
12 - 2
38 = 6
1 x 42 x 4 - 2
38 = 6
48 - 2
38 = 4
18 (d)
Make the denominators the same.
5
116 -
78 = 5
116 -
7 x 28 x 2 = 4
1716 -
1416 = 4
316Answer(s): 2
310, 3
524, 4
18, 4
316