Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 8 - 19 = _____
- 345 - 115 = _____
- 425 - 3215 = _____
- 6221 - 47 = _____
(a)
8 -
19 = 7
99 -
19 = 7
89 (b)
Make the denominators the same.
3
45 -
115 = 3
4 x 35 x 3 -
115 = 3
1215 -
115 = 3
1115 (c)
Make the denominators the same.
4
25 - 3
215 = 4
2 x 35 x 3 - 3
215 = 4
615 - 3
215 = 1
415 (d)
Make the denominators the same.
6
221 -
47 = 6
221 -
4 x 37 x 3 = 5
2321 -
1221 = 5
1121Answer(s): 7
89, 3
1115, 1
415, 5
1121