Negative numbers and rational numbers
Answers are for parents and teachers.
1
Write a number for each: 15 m below sea level; 6 °C above zero; owing 40 LE.
−15 m; 6 °C; −40 LE.
2
Write the opposite of 14, −3.5 and 0.
−14, 3.5 and 0.
3
Write <, > or = : (a) −3 ___ −8 (b) −1 ___ 0 (c) 2 ___ −20
(a) −3 > −8 (b) −1 < 0 (c) 2 > −20.
4
Order from least to greatest: 3, −9, 0, −1, 8.
−9, −1, 0, 3, 8.
5
Write each as a fraction a/b: −3, 0.5, −1.25.
−3 = −3/1, 0.5 = 1/2 and −1.25 = −125/100 = −5/4.