Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 5 - 911 = _____
- 528 - 116 = _____
- 625 - 3120 = _____
- 8221 - 47 = _____
(a)
5 -
911 = 4
1111 -
911 = 4
211 (b)
Make the denominators the same.
5
28 -
116 = 5
2 x 28 x 2 -
116 = 5
416 -
116 = 5
316 (c)
Make the denominators the same.
6
25 - 3
120 = 6
2 x 45 x 4 - 3
120 = 6
820 - 3
120 = 3
720 (d)
Make the denominators the same.
8
221 -
47 = 8
221 -
4 x 37 x 3 = 7
2321 -
1221 = 7
1121Answer(s): 4
211, 5
316, 3
720, 7
1121