3rd Grade 2-Digit by 1-Digit Multiplication Worksheet: 12 Problems

Multiplying a two-digit number by a one-digit number is the bridge from the times tables to longer multiplication. This 3rd grade 2-digit by 1-digit multiplication worksheet has 12 problems written in columns, labeled a to l. The top numbers run from 10 to 99, and the bottom numbers from 0 to 9 in no fixed order. A girl with a bow and arrow aims across the title, and a toddler sits in the corner. A second page gives the answer key.

Split into tens and ones

For 49 × 7, split 49 into tens and ones: 40 and 9. Then 40 × 7 = 280 and 9 × 7 = 63. These partial products add up to 343, which is the answer printed for item a in the key on page two.

In the column method, the 63 becomes 3 in the ones place, with 6 tens carried over. Regrouping is the step that trips children up most often, because the carried digit is small and easy to forget. The carried tens join the next product: 28 tens plus 6 tens make 34 tens.

At the table: easy wins and a trap

Some items are quick. Item f, 48 × 1, stays 48, and item l, 99 × 0, gives 0. Items h and j, 20 × 3 and 10 × 9, use multiples of ten.

Item g, 93 × 8, gives the largest product on the page, 744, so it deserves a careful second look at the end. Watch item d, 97 × 6: forgetting the carried 4 gives 542 instead of 582. Most of these products pass 100, which is a grade 4 goal. The page is a stretch for third grade.

After the page: estimate first

Before each problem, your child rounds the top number. For 67 × 8, 70 × 8 = 560, so the answer must be a little less. The real product is 536.

An estimate catches big slips in column multiplication, such as a missing carried ten or a digit in the wrong place. Finish by checking the 12 products with the answer key on page two.