Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 7 - 211 = _____
- 236 - 112 = _____
- 635 - 4215 = _____
- 3121 - 67 = _____
(a)
7 -
211 = 6
1111 -
211 = 6
911 (b)
Make the denominators the same.
2
36 -
112 = 2
3 x 26 x 2 -
112 = 2
612 -
112 = 2
512 (c)
Make the denominators the same.
6
35 - 4
215 = 6
3 x 35 x 3 - 4
215 = 6
915 - 4
215 = 2
715 (d)
Make the denominators the same.
3
121 -
67 = 3
121 -
6 x 37 x 3 = 2
2221 -
1821 = 2
421Answer(s): 6
911, 2
512, 2
715, 2
421