How to subtract - SSAT Elementary Level Quantitative

To subtract we can count backwards. Start at and count back .

We first subtract the hundredths place:

Then the tenths place: Since is less than , we have to borrow from the , the becomes a and the becomes :

Then the ones place: , since the is less than , we have to borrow from the , the becomes is the tens place, and the becomes in the ones place:

So the final answer is .

To find Bob's height, you must subtract (shorter than) Terry's height by the difference of heights between the brothers:

Write 342. Write 31 just below it, with the 3 under the 4, and the 1 under the 2. Now subtract straight down, starting on the right side.

2-1=1

4-3=1

3-0=3

Our answer is 311.

2 is less than 4, 4 is less than 11, and 11 is less than 12.

Note that ascending means increasing, not decreasing!

The bottom is the same in both fractions. This means that we can subtract straight across for the top numbers. The bottom number remains the same.

$\frac{8}{9}$-$\frac{4}{9}$= $\frac{8-4}{9}$=\frac{4}{9}$

Subtract the ones , then the tens, then the hundres place. The difference is 414.

The term "how many more" is asking you to subtract. Since Luke has more toy cars than Max, put the greater number first. Then subtract the lesser number .

Luke has two more cars than Max.

Line up the digits vertically. When subtracting the digits in the ones place, you will need to borrow a ten, so the 8 in the tens place becomes a 7 and the 1 in the ones place becomes 11. Now subtract the digits in the ones place . Now subtract the digits in the tens place . The difference is 55.

Write both fractions in terms of the least common denominator, in this case 10:

Subtract; start with nine birds. Three flew away: .

Six are left, then two more flew away: .

Four birds are left on the branch.

To find the difference, you need to subtract. When subtracting, always remember to put the greater number first!

When we try to subtract the ones place, we will need to cancel. For 22, the ones place becomes 12 and the tens place becomes 1.

The difference between 14 and 22 is 8.

. The hundredths place is occupied by 7.

Subtract 5 from 14 to find Eric's current age: 14 - 5 = 9