Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 3 - 911 = _____
- 525 - 110 = _____
- 713 - 419 = _____
- 9316 - 58 = _____
(a)
3 -
911 = 2
1111 -
911 = 2
211 (b)
Make the denominators the same.
5
25 -
110 = 5
2 x 25 x 2 -
110 = 5
410 -
110 = 5
310 (c)
Make the denominators the same.
7
13 - 4
19 = 7
1 x 33 x 3 - 4
19 = 7
39 - 4
19 = 3
29 (d)
Make the denominators the same.
9
316 -
58 = 9
316 -
5 x 28 x 2 = 8
1916 -
1016 = 8
916Answer(s): 2
211, 5
310, 3
29, 8
916