CCSS 4.NBT.4 Review

Front

What is the value of 395 + 126?

Back

521

Front

What is the sum of 1,687 and an unknown number if the total is 3,452?

Back

1765

Front

If Delaware became the first U.S. state in 1787, what year did Hawaii become a state if it was 172 years later?

Back

1959

Front

What mistake did Nate make in his addition problem?

Back

He forgot to regroup the sum of the ones into 0 ones and 1 ten.

Front

What is the process of regrouping in addition?

Back

Regrouping is when you carry over a value from one place value to the next when the sum exceeds 9.

Front

What does the term 'place value' mean?

Back

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

Front

What is the value of the digit 4 in the number 4,567?

Back

4,000 (four thousand) because it is in the thousands place.

Front

How do you find the unknown number in an equation?

Back

You isolate the unknown by performing the same operation on both sides of the equation.

Front

What is the difference between addition and subtraction?

Back

Addition combines numbers to find a total, while subtraction finds the difference between numbers.

Front

What is the sum of 2,481 and 1,010?

Back

3491