Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 5 - 14 = _____
- 526 - 124 = _____
- 835 - 4215 = _____
- 2116 - 78 = _____
(a)
5 -
14 = 4
44 -
14 = 4
34 (b)
Make the denominators the same.
5
26 -
124 = 5
2 x 46 x 4 -
124 = 5
824 -
124 = 5
724 (c)
Make the denominators the same.
8
35 - 4
215 = 8
3 x 35 x 3 - 4
215 = 8
915 - 4
215 = 4
715 (d)
Make the denominators the same.
2
116 -
78 = 2
116 -
7 x 28 x 2 = 1
1716 -
1416 = 1
316Answer(s): 4
34, 5
724, 4
715, 1
316