Operations with Whole Numbers - Basic Math

Ones digit:

Tens digit: (leave the two at the tens, carry the one to the hundreds digit)

Hundreds digit: , add the one from the tens digit, so you get 5 + 1 = 6

Thousands digit:

First add the digits in the ones colume, this would be . Make sure to carry the 1 from the 17 to the tens colume.

Then add the digits in the tens colume, this would be .

Lastly, add the digits in the hundrends colume, this would be

Therefore the result is as follows:

1. Add the ones places:

2. Add the tens places:

***don't forget to put the 3 down and carry the one to the hundreds place***

3. Add the hundreds place:

This makes your total:

We can see this because if we had 5 (represented by ) and add another 2 objects (represented by ) we should get 7 objects ( and ) total.

We have 7 objects total!

If x represents objects.

For 5:

For 6:

We can see that 11 objects result.

This is a simple subtraction problem.

First, subtract the number of video games Paul gave to Chris on Monday.

Now, subtract the number of video games Paul sold from the number he has left.

Finally, subtract the number of video games Paul broke and threw away.

We can show this using objects:

We can see that only 7 objects are left.

We can see that by the objects.

We can see that there is only one object left.

The problem can be solved as follows. First, calculate the number of sea monkeys left at the end of the first month:

Then, calculate the number of sea monkeys left at the end of the second month:

To solve for n we need to isolate n on one side of the equation and all of the constants on the other side.

We do this by adding 15 to both sides.

Then we add 12 to both sides to get our final answer.

If you need to break it down, you can split it into smaller pieces:

and , and then add the pieces back together: .

To solve, create a linear equation:

represents the total number of people on the bus before the first stop.

We then subtract the amount of people that got off at each stop and set that equal to the number of people to get off at the final stop.

Ones digit:

Tens digit: (leave the two at the tens, carry the one to the hundreds digit)

Hundreds digit: , add the one from the tens digit, so you get 5 + 1 = 6

Thousands digit:

First add the digits in the ones colume, this would be . Make sure to carry the 1 from the 17 to the tens colume.

Then add the digits in the tens colume, this would be .

Lastly, add the digits in the hundrends colume, this would be

Therefore the result is as follows:

1. Add the ones places:

2. Add the tens places:

***don't forget to put the 3 down and carry the one to the hundreds place***

3. Add the hundreds place:

This makes your total:

We can see this because if we had 5 (represented by ) and add another 2 objects (represented by ) we should get 7 objects ( and ) total.

We have 7 objects total!

If x represents objects.

For 5:

For 6:

We can see that 11 objects result.

The hundredth place is the 2nd number after the decimal. Because the thousandth place is great than 5, we will need to round up to

1. Round 145 to the nearest 10:

Since there is a 5 in the ones place, 145 rounds up to 150.

2. Divide the rounded number of baseballs by 10 since they come in packages of 10:

150/10=15 packages

To round to the nearest ten, you need to take a look at the ones' place. Since the ones' place is greater than , you will need to round the tens' place up.

So then is rounded up to .