Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 4 - 711 = _____
- 4310 - 140 = _____
- 624 - 2116 = _____
- 3314 - 47 = _____
(a)
4 -
711 = 3
1111 -
711 = 3
411 (b)
Make the denominators the same.
4
310 -
140 = 4
3 x 410 x 4 -
140 = 4
1240 -
140 = 4
1140 (c)
Make the denominators the same.
6
24 - 2
116 = 6
2 x 44 x 4 - 2
116 = 6
816 - 2
116 = 4
716 (d)
Make the denominators the same.
3
314 -
47 = 3
314 -
4 x 27 x 2 = 2
1714 -
814 = 2
914Answer(s): 3
411, 4
1140, 4
716, 2
914