Zero Factory
Tap to separate
To multiply by a ten, first pull off the zero!
{{p1.a}}
×
{{p1.b}}
Zero Bank
0
Slide to solve
Solve the core multiplication problem first.
{{p1.a}}
×
{{p1.b}}
=
{{step2Value}}
1
81
Correct!
Drag to combine
Bring the zero back from the bank to finish the math!
{{p1.a}}
×
{{p1.b}}0
=
{{p1.ans}}
0
Bank
0
Dial the answer
Two big numbers? Multiply the core, then count ALL the zeros!
{{p2.a}}0
×
{{p2.b}}0
=
?
1. Core Answer
({{p2.a}} × {{p2.b}})
({{p2.a}} × {{p2.b}})
{{s4CoreVal}}
2. Add Zeros
(Count them!)
(Count them!)
-
{{ '0'.repeat(s4ZeroVal) }}
{{s4CoreVal}}
{{ '0'.repeat(s4ZeroVal) }}
Zero Master!
You've unlocked the secret of multiplying with tens.
1
Multiply the core digits.
2
Count the zeros in the problem.
3
Add that many zeros to your answer!