4th grade math review

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. It often involves increasing or decreasing the number to the nearest specified place value.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round a number to the nearest hundred?

Back

To round a number to the nearest hundred, look at the tens digit. If it is 5 or greater, round up; if it is less than 5, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the product of 200 and 6?

Back

The product of 200 and 6 is 1,200.

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CCSS.4.NBT.B.5

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. It combines groups of equal sizes.

Tags

CCSS.3.OA.A.1

Front

What is the first step in adding multi-digit numbers?

Back

The first step in adding multi-digit numbers is to align the numbers by their place values, starting from the rightmost digit (ones place).

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the first step in subtracting multi-digit numbers?

Back

The first step in subtracting multi-digit numbers is to align the numbers by their place values, starting from the rightmost digit (ones place).

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the product of 45 and 3?

Back

The product of 45 and 3 is 135.

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CCSS.4.NBT.B.5

Front

What is the importance of place value in addition and subtraction?

Back

Place value is important in addition and subtraction because it helps to correctly align numbers and perform operations based on the value of each digit.

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CCSS.2.NBT.B.7

Front

How do you round 1,457 to the nearest hundred?

Back

To round 1,457 to the nearest hundred, look at the tens digit (5). Since it is 5 or greater, round up to 1,500.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the difference between rounding up and rounding down?

Back

Rounding up means increasing the number to the next higher value, while rounding down means decreasing the number to the next lower value.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3