Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 5 - 511 = _____
- 535 - 115 = _____
- 515 - 4120 = _____
- 6316 - 78 = _____
(a)
5 -
511 = 4
1111 -
511 = 4
611 (b)
Make the denominators the same.
5
35 -
115 = 5
3 x 35 x 3 -
115 = 5
915 -
115 = 5
815 (c)
Make the denominators the same.
5
15 - 4
120 = 5
1 x 45 x 4 - 4
120 = 5
420 - 4
120 = 1
320 (d)
Make the denominators the same.
6
316 -
78 = 6
316 -
7 x 28 x 2 = 5
1916 -
1416 = 5
516Answer(s): 4
611, 5
815, 1
320, 5
516