Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 8 - 211 = _____
- 3310 - 140 = _____
- 314 - 2212 = _____
- 6121 - 47 = _____
(a)
8 -
211 = 7
1111 -
211 = 7
911 (b)
Make the denominators the same.
3
310 -
140 = 3
3 x 410 x 4 -
140 = 3
1240 -
140 = 3
1140 (c)
Make the denominators the same.
3
14 - 2
212 = 3
1 x 34 x 3 - 2
212 = 3
312 - 2
212 = 1
112 (d)
Make the denominators the same.
6
121 -
47 = 6
121 -
4 x 37 x 3 = 5
2221 -
1221 = 5
1021Answer(s): 7
911, 3
1140, 1
112, 5
1021