4.CE.2.g.i
a two-digit factor and a one-digit factor;
Example Problems
Multiply:
Multiply:
Multiply:
Khan Academy ResourcesMultiply without regroupingMultiply with regroupingMultiply using partial productsMultiply 2-digits by 1-digit with area modelsMultiply 2-digits by 1-digit with distributive propertyEstimate products (1-digit times 2, 3, and 4-digit)Estimating with multiplicationComparing with multiplication: magicMultiplying two 2-digit numbers using partial productsMultiplying 2-digits by 1-digit with partial productsMultiplying whole numbers by 10

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