Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 9 - 35 = _____
- 435 - 120 = _____
- 724 - 2116 = _____
- 8114 - 67 = _____
(a)
9 -
35 = 8
55 -
35 = 8
25 (b)
Make the denominators the same.
4
35 -
120 = 4
3 x 45 x 4 -
120 = 4
1220 -
120 = 4
1120 (c)
Make the denominators the same.
7
24 - 2
116 = 7
2 x 44 x 4 - 2
116 = 7
816 - 2
116 = 5
716 (d)
Make the denominators the same.
8
114 -
67 = 8
114 -
6 x 27 x 2 = 7
1514 -
1214 = 7
314Answer(s): 8
25, 4
1120, 5
716, 7
314