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

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

In this case,  is less than  so our rounded number is  or 

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

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

In this case,  is less than  so our rounded number is  or 

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

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

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

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

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

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

To add two numbers in modulo 12 arithmetic, we can add, divide by 12 and note the remainder:

We select the remainder. The correct response is 3.

To subtract two numbers in modulo 12 arithmetic, we can simply subtract first:  

Since the number is negative, add 12:

 in modulo 12 arithmetic.

To multiply two numbers in modulo 12 arithmetic, find the product, divide by 12, and note the remainder.

The remainder is 3, so 

 modulo 12.

To add numbers in modulo 12 arithmetic, we can add, divide by 12 and note the remainder:

The remainder is 6, so

 modulo 12.

Determine the total parts of carrots and turnips in the troll’s lunch by adding them .

Divide the total weight of the troll’s lunch by the number of parts to determine how many pounds per part .

Finally, multiply the parts of turnips (4) by the number of pounds/part.

Therefore,

Determine the total parts of tea and milk in the drink by adding them .

Divide the total volume of the drink by the number of parts in the drink to determine how many ounces per part 

Finally, multiply the parts of tea (5) by the number of ounces/part. Therefore, .