Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 9 - 37 = _____
- 445 - 110 = _____
- 713 - 3312 = _____
- 7221 - 67 = _____
(a)
9 -
37 = 8
77 -
37 = 8
47 (b)
Make the denominators the same.
4
45 -
110 = 4
4 x 25 x 2 -
110 = 4
810 -
110 = 4
710 (c)
Make the denominators the same.
7
13 - 3
312 = 7
1 x 43 x 4 - 3
312 = 7
412 - 3
312 = 4
112 (d)
Make the denominators the same.
7
221 -
67 = 7
221 -
6 x 37 x 3 = 6
2321 -
1821 = 6
521Answer(s): 8
47, 4
710, 4
112, 6
521