Find the following values without a calculator.
Give your answers in this manner. (Eg 0.1, 0.2, 0.3)
- 2.7, 2.8, ____, 3
- 1.1, ____, 1.4, 1.55
- 3.4, 3.8, 4.2, _____
(a)
Common difference
= 2.8 - 2.7
= 0.1
Number
= 2.8 + 0.1
= 2.9
(b)
Common difference
= 1.55 - 1.4
= 0.15
Number
= 1.1 + 0.15
= 1.25
(c)
Common difference
= 4.2 - 3.8
= 0.4
Number
= 4.2 + 0.4
= 4.6
Answer(s): 2.9, 1.25, 4.6