Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 2 - 78 = _____
- 447 - 121 = _____
- 623 - 336 = _____
- 9221 - 47 = _____
(a)
2 -
78 = 1
88 -
78 = 1
18 (b)
Make the denominators the same.
4
47 -
121 = 4
4 x 37 x 3 -
121 = 4
1221 -
121 = 4
1121 (c)
Make the denominators the same.
6
23 - 3
36 = 6
2 x 23 x 2 - 3
36 = 6
46 - 3
36 = 3
16 (d)
Make the denominators the same.
9
221 -
47 = 9
221 -
4 x 37 x 3 = 8
2321 -
1221 = 8
1121Answer(s): 1
18, 4
1121, 3
16, 8
1121