10. Compare. 18 (-3) + 21 and 18 x [(-3) + 21]
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Step-by-step explanation:
18×(-3)+21 = 54 + 21 = 75
18 × [(-3)+21]= 18 × 18 = 324
Therefore, 75 < 324
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Answer:
A thermometer is a tool that measures temperature — how hot or cold something is. Thermometers are used to see if you have a fever or tell you how cold it is outside. Made up of thermo (heat) and meter (measuring device), the meaning of the word thermometer is pretty straightforward.
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