Learning Resources MathShark Manual descarregar pdf (Página 16)

Level 7

Multiply 2-digit numbers

by 1-digit numbers with

regrouping.

47 x 3 =

58 x 2 =

33 x ? = 132

? x 47 = 94

You might want to encourage players to use their

estimating skills at this level. Estimation is a valuable

tool in mental math.

Remind players to enter the complete answer from

left to right.

Level 8

Introduces the pre-algebra

concept of finding the

missing factor (shown as ?)

in multiplication.

To find the missing factor, divide the product by the known factor.

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Learning Resources MathShark Manual Página 16