Solve problems involving multiplication of larger numbers by one- or...

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• solve problems involving multiplication of larger numbers by one- or two-digit numbers, choosing efficient calculation strategies and using digital…
• solving multiplication problems such as 253 \times 4 using a doubling strategy; for example, 2 \times 253 = 506 and 2 \times 506 = 1012
• solving multiplication problems like 15 \times 16 by thinking of factors of both numbers, 15 = 3 \times 5, 16 = 2 \times 8; rearranging the factors…