Weekly number challenge

Today’s Number:

647

Write it in words

six hundred and forty seven

Write it as an expanded number

600+40+7=647

Add 3

650

Add 20

667

Subtract 5

662

Double it

1294

Half of it

323.5

                                   

Multiply by 3

1941

The easiest part was Writing it in words

The hardest part was multiplying it by 3

I need to work on halving numbers.