Multiply left to right too: multiply the tens of the larger operand by the other one, then the units, and add the two results. This is exactly the Hint you'll see in-game if you get stuck.
27 × 4= (20×4) + (7×4)= 80 + 28= 108
48 × 9= (40×9) + (8×9)= 360 + 72= 432
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Practice 4d × 1d