UNIT 5: Developing Proficiency - Dividing by 2-Digit Divisors

Front

What is a 2-digit divisor?

Back

A 2-digit divisor is a number that has two digits and is used to divide another number. For example, 12, 34, and 56 are all 2-digit divisors.

Front

How do you convert inches to feet?

Back

To convert inches to feet, divide the number of inches by 12, since there are 12 inches in a foot.

Front

What is the formula to calculate time when distance and speed are known?

Back

Time = Distance ÷ Speed.

Front

How do you find the number of items per group when dividing?

Back

To find the number of items per group, divide the total number of items by the number of groups.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If a × b = c, then c ÷ b = a.

Front

How do you determine the minimum number of groups needed for a total?

Back

To determine the minimum number of groups needed, divide the total by the size of each group and round up to the nearest whole number.

Front

What does it mean to pack items equally into boxes?

Back

Packing items equally into boxes means distributing the total number of items evenly so that each box contains the same amount.

Front

What is the process for solving a division problem with a 2-digit divisor?

Back

1. Estimate how many times the divisor fits into the dividend. 2. Divide the first part of the dividend. 3. Multiply and subtract. 4. Bring down the next digit and repeat.

Front

How do you check your division answer?

Back

To check your division answer, multiply the quotient by the divisor. If the product equals the dividend, your answer is correct.

Front

What is a remainder in division?

Back

A remainder is the amount left over after division when the dividend is not evenly divisible by the divisor.