Question

I need help, on 1-3 and with the chart

Answer 1

1. you do 7×---=21 next you do not what the answer was to 7×---=21 times 3
2. go back to 1.( what you did to 1. )
3. go back to 1. ( what you did to 1.)

Answer 2

Here i did the work on the computer and screenshot it