Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 7 - 211 = _____
- 248 - 132 = _____
- 735 - 4215 = _____
- 4114 - 57 = _____
(a)
7 -
211 = 6
1111 -
211 = 6
911 (b)
Make the denominators the same.
2
48 -
132 = 2
4 x 48 x 4 -
132 = 2
1632 -
132 = 2
1532 (c)
Make the denominators the same.
7
35 - 4
215 = 7
3 x 35 x 3 - 4
215 = 7
915 - 4
215 = 3
715 (d)
Make the denominators the same.
4
114 -
57 = 4
114 -
5 x 27 x 2 = 3
1514 -
1014 = 3
514Answer(s): 6
911, 2
1532, 3
715, 3
514