Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 9 - 711 = _____
- 546 - 118 = _____
- 423 - 336 = _____
- 2221 - 47 = _____
(a)
9 -
711 = 8
1111 -
711 = 8
411 (b)
Make the denominators the same.
5
46 -
118 = 5
4 x 36 x 3 -
118 = 5
1218 -
118 = 5
1118 (c)
Make the denominators the same.
4
23 - 3
36 = 4
2 x 23 x 2 - 3
36 = 4
46 - 3
36 = 1
16 (d)
Make the denominators the same.
2
221 -
47 = 2
221 -
4 x 37 x 3 = 1
2321 -
1221 = 1
1121Answer(s): 8
411, 5
1118, 1
16, 1
1121