Scale by a power of ten

The digits change column, so counting zeros on the end of the answer is not a safe check. The wrong answers on this skill are built out of that, not out of random numbers, so it is worth naming out loud before your child meets it under time pressure.

Point at the next move rather than explaining the whole rule. Read what R is worth off the line, then move every digit 3 columns to the left and read the new number back.

The skill map draws the line here: Excludes arbitrary multiplication. A question past that line is testing a different named maths skill, which is worth knowing before you spend a week practising the wrong one.

The number strand holds 13 skills that are tested together, and the pages next to scale by a power of ten are solve a one-step number problem, subtract whole numbers or decimals and add whole numbers or decimals. Each has its own exercise and its own link, and none of them needs an account.

Use Power Slider, embedded on this page. It is the exercise the skill map attaches to scale by a power of ten, it runs in the browser with no account to make, nothing is scored, and nothing a child does here is recorded or sent anywhere. It also has its own link, so you can send it to a child without sending them anywhere else first.