Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 3 - 711 = _____
- 548 - 116 = _____
- 315 - 2320 = _____
- 5115 - 45 = _____
(a)
3 -
711 = 2
1111 -
711 = 2
411 (b)
Make the denominators the same.
5
48 -
116 = 5
4 x 28 x 2 -
116 = 5
816 -
116 = 5
716 (c)
Make the denominators the same.
3
15 - 2
320 = 3
1 x 45 x 4 - 2
320 = 3
420 - 2
320 = 1
120 (d)
Make the denominators the same.
5
115 -
45 = 5
115 -
4 x 35 x 3 = 4
1615 -
1215 = 4
415Answer(s): 2
411, 5
716, 1
120, 4
415