Find the following values without a calculator.
Give your answers in this manner. (Eg 0.1, 0.2, 0.3)
- 8.6, 8.7, ____, 8.9
- 1.1, ____, 1.4, 1.55
- 1.7, 2.1, 2.5, _____
(a)
Common difference
= 8.7 - 8.6
= 0.1
Number
= 8.7 + 0.1
= 8.8
(b)
Common difference
= 1.55 - 1.4
= 0.15
Number
= 1.1 + 0.15
= 1.25
(c)
Common difference
= 2.5 - 2.1
= 0.4
Number
= 2.5 + 0.4
= 2.9
Answer(s): 8.8, 1.25, 2.9