Express \( 0.000042 \) in standard form.
Key Stage 3 (KS3) · Mathematics
Standard Form:練習題
5 條多項選擇題即時批改,另有 1 條文字題附完整解題步驟,全部圍繞「Standard Form」。
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第 1 題
1 分第 2 題
1 分The thickness of a piece of paper is \( 9.5 \times 10^{-3} \text{ cm} \). What is the total thickness of \( 2000 \) pieces of such paper, expressed in standard form?
第 3 題
1 分Calculate \( (4.2 \times 10^5) + (3.1 \times 10^5) \) and express the answer in standard form.
第 4 題
1 分Express the product of \( 5 \times 10^6 \) and \( 3 \times 10^{-2} \) in standard form.
第 5 題
1 分Express \( 0.0000000352 \) in standard form.
第 6 題
2 分The distance between two planets is approximately \( 1.5 \times 10^8 \text{ km} \). Express this distance in ordinary notation.
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