subtraction

On a farm, the farmer harvested 34.7 crates of apples and 25.9 crates of oranges. How much more crates of apples are harvested? How much more means we subtract: 34.7 - 25.9 = 8.8 more craters of apples

If a classroom has 25 students and 8 of them are absent, how many students are present? The word absent means not in class, so we subtract the 8 absent students from 25 to get: 25 - 8 = 17 students present

Subtracting 9s shortcut Add the digits of the larger number 10 - 9 = 1 + 0 = 1 11 - 9 = 1 + 1 = 2 12 - 9 = 1 + 2 = 3 13 - 9 = 1 + 3 = 4 14 - 9 = 1 + 4= 5 15 - 9=. 1 + 5 = 6 16 - 9 = 1 + 6= 7 17 - 9= 1 + 7 = 8 18 - 9 = 1 + 8 = 9 19 - 9 = 1 + 9 = 10

I have 5 apples and oranges, 4 are apples, how many oranges do I have? 5 apples and oranges - 4 apples = 1 orange

Natalie made a deal with a farmer. She agreed to work for an entire year and in return, the farmer would give her $10,200 plus a prize pig. After working for 5 months, Natalie decided to quit. The farmer determined that 5 months of work was equal to $3375 plus the pig. How much money was the...

Lamar had N record albums that he tried to sell at a garage sale for $5 each. If the number of record albums he didn't sell is called Q, how much money did Lamar get from record album sales? Sales = Price * (Albums had - Albums sold) Sales = 5(N - Q)

If 9/20 of a salad is eaten, how much is leftover? The full salad is 1. Using a common denominator, we have 1 = 20/20 So the leftover is 20/20 - 9/20 = 11/20

Anthony has 8 cookies. He gives one to his friend. How many does he have left? When Anthony gives one cookie away, he reduces his total: 8 - 1 = 7 cookies left

Kimberly has $98.00 and Christine has $3.45. How much more does Kimberly have than Christine? Kimberly's excess = Kimberly's money - Christine's money Kimberly's excess = 98 - 3.45 Kimberly's excess = 94.55

A company has 81 employees of whom x are members of a union how many are not in the union You can either be a union member or a non-union member. This is our sample space. If we have 81 employees and x are union members, this means that: Non-Union membes = 81 - x

you and michael have the sum of 19.75. if michael has 8.25 how much more do you have If you and Michael have 19.75, and Michael has 8.25, then you have: 19.75 - 8.25 = 11.50 Overage/Excess than Michael = Your Money - Michael's money Overage/Excess than Michael = 11.50 - 8.25 Overage/Excess...

In planning for a particular job, a painter buys $747 worth of materials. When the job is completed, she returns some unused rollers and brushes for a credit of $38. What was the net amount of her bill? Net bill = Purchase - Returns Net bill = 747 - 38 Net bill = 709

in 5 years, sarah will be old enough to vote in an election. the minimum age for voting is at least 18 years. what can you say about how old she is now? 18 - 5 = 13 years old

PQ=3.7 and PR=14.1 what is QR QR = PR - PQ by segment addition QR = 14.1 - 3.7 QR = 10.4

tim ate 3 cookies. He wants 5 cookies? How many cookies does he need? Cookies needed = Cookies Wanted - Cookies Eaten Cookies needed = 5 - 3 Cookies needed = 2

A day after tomorrow is 3 days before Monday. What’d day is today Three days before Monday is: Sunday, Saturday, Friday A day after tomorrow is Friday. Which means we rewind 2 days to get: Friday, Thursday, Wednesday

Michael invited 30 of his friends to his part and a third of guest arrived late how many arrived on time If 1/3 arrived late, then 1 - 1/3 = 2/3 arrived on time Guests who arrived on time = 2/3 of 30 Guests who arrived on time = 20

i have 10 apples i take 5 away then add 5 how much is left ?' Start with 10 Take away 5: 10 - 5 = 5 Add 5: 5 + 5 = 10

Anna made $60 babysitting. She spent 4/5 of the money on new shoes. How much money does she have left? Calculate shoe spend 4/5 of 60 = 48 Calculate leftover money Leftover money = Babysitting money - shoe spend Leftover money = 60 - 48 Leftover money = 12

A school bus can safely carry as many as 76 students. If 19 students are already on the bus, how many more can board the bus? Remaining boarders = total capacity - students on the bus Remaining boarders = 76 - 19 Remaining boarders = 57