Number & Operations in Base Ten

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4th Grade Math › Number & Operations in Base Ten

Questions 1 - 10
1

Round to the nearest ten.

Explanation

When we round a number to the nearest ten we look to the ones place to tell us if we round up or down.

If the number in our ones place is or greater, we round up. If the number in the ones place is or less, we round down. When we round up, the number in the tens place increases by and all the other numbers to the right become . When we round down, the number in the tens place stays the same and all the other numbers to the right become .

In this case, is greater than so our rounded number is

2

Solve by making a rectangular array.

Explanation

Using our problem to make a rectangular array, we know that we are going to use a total of squares, and one dimension of the rectangular array is going to have squares, we'll make that the width. Our answer will be how many squares high the rectangle array is, or the height.

We can start with squares and keep adding on top of the previous until we've used all squares. Our rectangular array is squares high with squares left over, which is our remainder.

6

3

Fill in the blank with the correct symbol.

__________

Explanation

is greater than because of the digit in the hundreds place. is greater than . The correct symbol is because that means greater than.

4

Round to the nearest ten.

Explanation

When we round a number to the nearest ten we look to the ones place to tell us if we round up or down.

If the number in our ones place is or greater, we round up. If the number in the ones place is or less, we round down. When we round up, the number in the tens place increases by and all the other numbers to the right become . When we round down, the number in the tens place stays the same and all the other numbers to the right become .

In this case, is greater than so our rounded number is

5

Fill in the blank with the correct symbol.

__________

Explanation

is greater than because of the digit in the hundreds place. is greater than . The correct symbol is because that means greater than.

6

Round to the nearest ten.

Explanation

When we round a number to the nearest ten we look to the ones place to tell us if we round up or down.

If the number in our ones place is or greater, we round up. If the number in the ones place is or less, we round down. When we round up, the number in the tens place increases by and all the other numbers to the right become . When we round down, the number in the tens place stays the same and all the other numbers to the right become .

In this case, is greater than so our rounded number is

7

Fill in the blank with the correct symbol.

__________

Explanation

is greater than because of the digit in the hundreds place. is greater than . The correct symbol is because that means greater than.

8

Solve by making a rectangular array.

Explanation

Using our problem to make a rectangular array, we know that we are going to use a total of squares, and one dimension of the rectangular array is going to have squares, we'll make that the width. Our answer will be how many squares high the rectangle array is, or the height.

We can start with squares and keep adding on top of the previous until we've used all squares. Our rectangular array is squares high with squares left over, which is our remainder.

6

9

Solve by making a rectangular array.

Explanation

Using our problem to make a rectangular array, we know that we are going to use a total of squares, and one dimension of the rectangular array is going to have squares, we'll make that the width. Our answer will be how many squares high the rectangle array is, or the height.

We can start with squares and keep adding on top of the previous until we've used all squares. Our rectangular array is squares high with squares left over, which is our remainder.

6

10

What number is one thousand, nine hundred six?

Explanation

In number form, one thousand, nine hundred six is

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