Number 2
2 marks · EasyCalculate and give your answer in standard form.
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4.0 × 10^4
Also accept: 4 × 10^4; 4.0×10^4; 4.00×10^4
Common mistakes: 3.0 × 10^8; 4 × 10^8; 4.0 × 10^5
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Marking points
M1 · 1 mark · Adds coefficients correctly: 2.5 + 1.5 = 4.0
A1 · 1 mark · Final answer correctly written in standard form: 4.0 × 10^4
Worked solution