Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 3 - 111 = _____
- 535 - 115 = _____
- 725 - 1120 = _____
- 2114 - 67 = _____
(a)
3 -
111 = 2
1111 -
111 = 2
1011 (b)
Make the denominators the same.
5
35 -
115 = 5
3 x 35 x 3 -
115 = 5
915 -
115 = 5
815 (c)
Make the denominators the same.
7
25 - 1
120 = 7
2 x 45 x 4 - 1
120 = 7
820 - 1
120 = 6
720 (d)
Make the denominators the same.
2
114 -
67 = 2
114 -
6 x 27 x 2 = 1
1514 -
1214 = 1
314Answer(s): 2
1011, 5
815, 6
720, 1
314