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
- 8.3, ____, 8.6, 8.75
- 4.9, 5.3, 5.7, _____
(a)
Common difference
= 7.5 - 7.4
= 0.1
Number
= 7.5 + 0.1
= 7.6
(b)
Common difference
= 8.75 - 8.6
= 0.15
Number
= 8.3 + 0.15
= 8.45
(c)
Common difference
= 5.7 - 5.3
= 0.4
Number
= 5.7 + 0.4
= 6.1
Answer(s): 7.6, 8.45, 6.1