Page 41 - 新思维数学活动用书7 样章
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2 Expressions, formulae and equations
14 Arun looks at this number line:
–5 –4 –3 –2 –1
The number line
shows the inequality
x > −4.5.
Explain the mistake that Arun has made.
15 Write down the inequality shown on these number lines. Use the letter w.
a b
–8 –7 –6 –5 –4 –3 –13 –12 –11 –10
16 Copy each number line and show each inequality on the number line.
a y < −1.5 b y > −4.4
–3 –2 –1 0 1 –5 –4 –3 –2
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