Find the following values without a calculator.
Give your answers in this manner. (Eg 0.1, 0.2, 0.3)
- 2.6, 2.7, ____, 2.9
- 1.3, ____, 1.6, 1.75
- 1.1, 1.5, 1.9, _____
(a)
Common difference
= 2.7 - 2.6
= 0.1
Number
= 2.7 + 0.1
= 2.8
(b)
Common difference
= 1.75 - 1.6
= 0.15
Number
= 1.3 + 0.15
= 1.45
(c)
Common difference
= 1.9 - 1.5
= 0.4
Number
= 1.9 + 0.4
= 2.3
Answer(s): 2.8, 1.45, 2.3