Back to Exercise: Standard Form (Scientific Notation)

Exercises: Standard Form (Scientific Notation)

Work through each section in order. Use the decimal-point method: move the point and count the moves. After writing any number as $A \times 10^n$ , check that $A$ is between 1 and 10.

Grade 7·16 problems·~25 min·Uganda NCDC Primary 7 Mathematics·lesson·operations-03

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Recall / Warm-Up

These problems review powers of 10 and expanded form from earlier lessons.

Which of these shows $47{,}000$ written in expanded form using powers of 10?

$(4 \times 10^4) + (7 \times 10^3)$

$4.7 \times 10^4$

$47 \times 10^3$

Evaluate $10^5$ . Write your answer as an ordinary whole number.

Fluency Practice

Which expression is written correctly in standard form?

$6.2 \times 10^5$

$62 \times 10^4$

$0.62 \times 10^6$

Write $8{,}000$ in standard form.

Write $6{,}000{,}000$ in standard form.

Write $73{,}000$ in standard form.

Write $4.2 \times 10^5$ as an ordinary whole number.

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