B73 — Mystery Numbers: Part/Whole and Equations
Problem Strings for Fluency and Beyond · Mystery Numbers: Part/Whole and Equations
Teacher notes
This string is like B68.
See B68 — Mystery Numbers: Part/Whole and Equations for the full "Behind the Numbers" explanation — this string uses the same crafting logic.
The string
- 30 ÷ ? = 3
- 27 ÷ ? = 9
- 6x7=?
- ?÷6=7
- 63 ÷ ? = 7
- ?÷9=8
- 9 x ? = 90
