About these worksheets
These worksheets build the prerequisite skills students need before formal multiplication. Activities include writing arrays as addition and multiplication equations, doubling and halving numbers, partitioning rectangles into rows and columns, multiplying by multiples of ten, rewriting repeated addition as multiplication, using number lines, reading multiplication tables for patterns, estimating reasonable products, and interpreting multiplication in word problems. Resources span second through fourth grade.
4nbt5
- Decide whether a multiplication answer makes sense before accepting it.
- Use rounding to 2, 5, and 10 as quick benchmarks to estimate a product.
- Compare an exact-looking product to an estimated range to spot answers that are too big or too small.
About these worksheets
Students practice multiplying with multiples of ten across increasing complexity levels. Worksheets cover single-digit times multiples of ten, two-digit times multiples of ten, multiplying by 10s and 100s, and multiplying when both factors are multiples of ten. These activities reinforce place value patterns in multiplication. Aligned with third through fifth grade.
4nbt1
- Multiply a two-digit number by 10, 20, 30, and other tens numbers.
- Use place value patterns to multiply by tens (shifting digits and adding zeros).
- Solve multi-digit multiplication problems accurately without a calculator.
4nbt1
- Multiply a two-digit number by 10, 20, 30, and other tens numbers.
- Use place value patterns to multiply by tens (shifting digits and adding zeros).
- Solve multi-digit multiplication problems accurately without a calculator.
4nbt1
- Multiply numbers when one or both factors end in zero.
- Use place value to add the right number of zeros to the product.
- Spot and use patterns when counting by tens, hundreds, or thousands to multiply faster.
- Multiply a basic fact first and then scale it up by 10, 100, or 1,000.
About these worksheets
These worksheets cover traditional multiplication methods from basic facts through multi-digit computation. Students practice mixed multiplication and division within 100, vertical multiplication with varying digit lengths (2×1, 3×1, 4×1, 2×2, 3×2, 4×2), using helper grids, and international-style multiplication. Resources span third through fifth grade standards.
4nbt5
- Multiply numbers with varies number of digits to find the product.
- Use the vertical (stacked) method to keep ones and tens lined up correctly.
- Carry to the next place value when the ones place makes 10 or more.
4nbt5
- Multiply a 3-digit number by a 1-digit number to find the product.
- Regroup (carry) when a place value multiplies to 10 or more.
4nbt5
- Multiply a 4-digit number by a 1-digit number to find the product.
- Use the vertical (stacked) method to keep digits lined up by place value.
- Regroup (carry) when a place value makes 10 or more during multiplication.
4nbt5
- Multiply a 2-digit number by a 2-digit number to find the product.
- Line up digits in columns so the ones and tens places stay organized while you work.
- Find and add partial products to get the final product.
- Use carrying when a column adds up to 10 or more.
4nbt5
- Multiply a multi-digit number by a multi-digit number using a helper grid to align items.
About these worksheets
Students learn the lattice method as an alternative multiplication strategy. Worksheets provide pre-drawn lattice grids for multiplying two-digit by two-digit and three-digit by two-digit numbers. This visual approach helps students organize partial products and reduce errors during multi-digit multiplication.
4nbt5
- Multiply two 2-digit numbers using the lattice (grid) method.
- Break each number into tens and ones to find the smaller partial products.
- Add the diagonal sums in the lattice to get the final product.
About these worksheets
These worksheets develop students' understanding of multiples, factors, and prime numbers. Activities include identifying multiples of a number, using divisibility rules for 2, 3, 5, 6, 9, and 10, finding the least common multiple of two numbers, and determining prime factorizations. Aligned with fourth and sixth grade standards.
4oa4
- Decide whether a number is a multiple of 2, 3, 5, 6, 9, or 10.
- Use quick divisibility rules (like last digit or digit sum) to check multiples without long division.
- Explain why a number is or is not a multiple using multiplication facts.
4oa4
- Pick out which numbers in a group are multiples of a given number.
- Use skip-counting to check whether a number is a multiple.
- Decide if one number is divisible by another without doing long division.
- Connect multiples to multiplication facts you already know.
4oa4
- Find two numbers that multiply to make a given number.
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- Break a number into its prime factors using division by small primes.
- Write a number as a product of prime numbers (prime factorization).
- Use factor pairs to help find all the prime factors of a number.
About these worksheets
Students use arrays — arrangements of rows and columns — to visualize and solve multiplication problems. Worksheets include basic array multiplication, arrays with factors of 10, and blank arrays for students to fill in. These concrete models connect the concept of equal groups to multiplication equations. Aligned with fourth grade.
4nbt5
- Use rows and columns in an array to understand what a multiplication problem means.
- Find a product by counting or building an array model.
- Break a multiplication problem into multiples of ten to solve.
4nbt5
- Use rows and columns in an array to understand what a multiplication problem means.
- Multiply a number by 10 and explain how the digits shift in place value.
- Break a multiplication problem into multiples of ten to solve.
4nbt5
- Use an array (rows and columns) to understand what a multiplication problem means.
- Multiply a number by 10 using place value patterns.
