Addition and Subtraction with regrouping

Front

What is regrouping in addition?

Back

Regrouping in addition is when you combine numbers that are greater than 10 and carry over to the next place value.

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you borrow from the next place value to subtract a larger digit from a smaller digit.

Front

What is the sum of 23 and 57?

Back

80

Front

What is the difference when you subtract 47 from 82?

Back

35

Front

What do you get when you add 213 and 77?

Back

290

Front

What is the result of 115 minus 36?

Back

79

Front

What is the sum of 47 and 75?

Back

122

Front

How do you add two-digit numbers?

Back

Align the numbers by place value, add the ones, and if the sum is 10 or more, regroup.

Front

How do you subtract two-digit numbers with regrouping?

Back

Align the numbers by place value, subtract the ones, and if you can't subtract, borrow from the tens.

Front

What is a place value?

Back

Place value is the value of a digit based on its position in a number.