1 multiple× multiple = multiple multiple1multiple = multiple multiple/multiple = 1 multiple
Speed × time = distance/speed = time/distance/time = speed.
Unit price × quantity = total price/total price = total quantity/quantity = unit price.
Work efficiency × working hours = total workload ÷ work efficiency = working hours ÷ total workload ÷ working hours = work efficiency.
Appendix+Appendix = and-one addend = another addend.
Minus-Minus = Difference Minus-Difference = Minus+Minus = Minus
Factor × factor = product ÷ One factor = another factor.
Dividend/Divider = quotient dividend/quotient = divisor quotient × divisor = dividend
Catch-up distance divided by speed difference equals catch-up time.
Catch-up time multiplied by speed difference equals catch-up distance.
Catch-up distance divided by catch-up time equals speed difference.
(sum+difference) ÷2= large number (sum-difference) ÷2= decimal.