Order of Operations
What does PEMDAS stand for?
Perentheses, Exponents, Multiplication, Division, Addition, Subtraction.
Sally has seven apples. She gives James two apples and four oranges. She eats one apple. How many apples does she have left?
Four apples.
12 x 5 =
60
2 + 3,278 =
3,280
Solve:
4 x 4 + (2 + 2) - 10 + 5 =
15
Solve:
5 x 5 - 20 + 30 - (5 x 1) =
30
David is going 30 miles an hour on his way to his friends house. His friend lives 90 miles away. How long will it take David to get to his friends house?
3 hours.
60 x 40 =
2,400
510 + 470 =
980
Lilly has $12. Her mom gives her $10. She goes to the store to buy candy and spends $3.50. Later, her dad gives her $5. How much money does she have now?
$23.50
Solve:
16 x 2 - (5 x 2) + 40 =
62
Jamie has $20. She buys a toy for $6.75. Later, Jamie gives her sister $5. How much money does Jamie have left?
$8.25
810 x 3 =
2,430
1,020 + 3,560 =
4,580
1,600 x 4 =
8,200
Solve:
400 - 200 + (80 - 20) + 10 =
270
Silvia has four cats, three dogs, one bunny, and three hamsters. She adopts another dog and three birds. How many pets does Silvia have now?
15 pets.
2,110 x 5 =
10,550
60,320 + 7,110 =
67, 430
If someone is born in 1992, how old are they this year?
28
What is the first step you take when solving the following:
2 x 4 (16 - 8) + 24 =
(16 - 8)
Joey is going 40 miles an hour to his grandmas house. His grandma lives 160 miles away. He makes a quick stop on the way that takes him 40 minutes. How long will it take Joey to get to his grandmas house?
4 hours and 40 minutes.
2005 x 30 =
60,150
15,030 + 41,650 =
56,680
54,130 + 98,540
152,670