Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 2 - 67 = _____
- 2210 - 140 = _____
- 425 - 2120 = _____
- 5114 - 67 = _____
(a)
2 -
67 = 1
77 -
67 = 1
17 (b)
Make the denominators the same.
2
210 -
140 = 2
2 x 410 x 4 -
140 = 2
840 -
140 = 2
740 (c)
Make the denominators the same.
4
25 - 2
120 = 4
2 x 45 x 4 - 2
120 = 4
820 - 2
120 = 2
720 (d)
Make the denominators the same.
5
114 -
67 = 5
114 -
6 x 27 x 2 = 4
1514 -
1214 = 4
314Answer(s): 1
17, 2
740, 2
720, 4
314