Specific Tricks Level 19: x5 (2d). half then times ten. 1. Halve number84 x 5 shortcut1.Halve numberHalve numberDivide by 2 first.84 / 2 = 42.2. Times ten2.Times tenHalve numberHalve number completedTimes tenScale by 10.42 x 10.3. Read answer3.Read answerHalve numberHalve number completedTimes tenTimes ten completedRead answerRead the complete product.answer 420.
