Find the following values without a calculator.
Give your answers in this manner. (Eg 0.1, 0.2, 0.3)
- 7.4, 7.5, ____, 7.7
- 1.6, ____, 1.9, 2.05
- 6.9, 7.3, 7.7, _____
(a)
Common difference
= 7.5 - 7.4
= 0.1
Number
= 7.5 + 0.1
= 7.6
(b)
Common difference
= 2.05 - 1.9
= 0.15
Number
= 1.6 + 0.15
= 1.75
(c)
Common difference
= 7.7 - 7.3
= 0.4
Number
= 7.7 + 0.4
= 8.1
Answer(s): 7.6, 1.75, 8.1