Author note — to cover

Long multiplication of two- and three-digit integers with the place-holder zero in each later row; grid method as backup; worded cost and area contexts. Decimal operands live on multiplying-decimals; estimation as a check lives on Measures estimating-calculations. Both tiers. (N2)

• Fluency — multiply two- and three-digit integers by two-digit integers using long multiplication (4 questions).
• Structure — complete missing partial products and place-holder zeros in later rows (4 questions).
• Application — solve integer-only cost and area problems by long multiplication (4 questions).