Dividing by two-digit numbers
Japanese school year: Elementary 4
What you learn
Students learn how to perform long division with two-digit divisors, including techniques for estimating and adjusting quotient digits. This method is valuable for distributing resources among large groups or converting units. Strong skills in one-digit long division, column multiplication, and subtraction are essential prerequisites for success.
Key points
Round the numbers to their leading digits to estimate what quotient to try first.
Lower the quotient by 1 if the product is too big, or raise it by 1 if the remainder is too big.
Write the first digit of the quotient right above the place where the divisor first fits.
Choose a set to practice.