Author note — to cover

Converting both ways between ordinary numbers and A x 10 to the n with 1 at-most A < 10 and integer n, large and small; correcting near-misses like 34 x 10 to the 5; real contexts. Ordering and arithmetic live on the three sibling pages; calculator entry lives on calculator-standard-form. Both tiers. (N9)

Introduction

—coming soon—

Practice and continue

Practice

Standard form

Converting both ways for large and small numbers, and correcting near-misses.

Next lesson

Ordering numbers in standard form

Comparing by the power of ten first, then by the front number.