Build the meaning of multiplication with a visual model — equal groups or an array — each linked to an addition equation and a multiplication equation.
Model and interpret division: share objects equally into groups, make equal groups, and read a division expression two ways (the number in each share, or the number of shares).
Multiply three numbers by grouping two of them first: 3 × 5 × 2 = (3 × 5) × 2 = 15 × 2 = 30, or 3 × (5 × 2) = 3 × 10 = 30. Either grouping gives the same product. The Even × Any focus applies the same regrouping to show why an even factor always makes an even product.
Solve multiplication and division word problems within 100 in equal-groups, array, and measurement situations — with a drawing model (multiplication or division), or as a mixed set with no model.
Every multiple of 5 ends in 5 or 0: 5 times an even number ends in 0, times an odd number ends in 5. Circle the ones digit of each product without computing.
Cumulative grade-3 arithmetic-patterns review as a multiple-choice test: even/odd sums and products, multiples of 5 and 10, even numbers, the commutative and distributive properties, and skip-count / missing-term sequences. Every question is single-answer multiple choice (A-D); several are mixed-concept (e.g. "Which product is even?", "Which equation is true?").
Multiply a whole number of up to four digits by a one-digit number, or two two-digit numbers, with the standard algorithm — or practice mental strategies based on place value and the properties of operations (compensation, doubling & halving).
uses: Place Value Relationships · Whole-Number Addition
Multi-Digit Multiplication with CompensationG44.NBT.B.5
Multiply by going to the round number just above and taking the extra back: 306 × 8 is 306 × (10 − 2) = 3,060 − 612. Works whenever a factor sits just under 10, 30, 100 — ×9, ×29, ×99 — and is done mentally, not in columns.
uses: Add & Subtract within 1000 · Place Value Relationships
Multi-Digit Multiplication with Friendly FactorsG44.NBT.B.5
Break a factor apart and regroup the pieces so a friendly product falls out: 24 × 25 becomes (6 × 4) × 25 = 6 × 100. Includes the doubling-and-halving case, where × 5 is × 10 then halved. Done mentally, not in columns.
Model a division that does not come out even: find how many each group gets and how many are left over, then check with total = groups × each + left over.
Divide by a ONE-DIGIT divisor with the long-division algorithm, or illustrate a division with remainder using a rectangular array. Use Focus to set the dividend size and whether there is a remainder.
Interpret a multiplication equation as a comparison: 35 = 5 × 7 means 35 is 5 times as many as 7 and 7 times as many as 5. Also write multiplication equations for verbal comparisons.
Multiply or divide to solve word problems about multiplicative comparison ("times as many"), using a bar model and an equation with a symbol for the unknown.
Solve multistep word problems with whole numbers using the four operations — including remainders that must be interpreted. Write an equation with a letter for the unknown, and check that answers are reasonable by rounding.
Arrange digits to make the greatest product, using place value. Distinct digits 1–9; build the biggest (and smallest) product, or compare two arrangements in four steps: expand, the hundreds, the tens and ones, the sign. The answer key shows the exact champion.
Divide by a TWO-DIGIT divisor with the long-division algorithm — estimating each digit of the quotient, which is what makes this harder than dividing by one digit.
Generate equivalent expressions with the distributive property — expand and factor, an area model, spot-the-error reasoning, word problems, and mental math.