Eva has 17 white buttons. She has 9 fewer brown buttons than white buttons. Eva has 17 more gray buttons than brown buttons. How many buttons does Eva have in all?
Write an expression.
17 + (17 - 9) + (17 - 9 + 17)
100
Jeff's Toy Shop bought 10 bags of marbles. There were 400 marbles in each bag. How many marbles did Jeff's Toy Shop buy?
4,000 marbles
200
Estimate:
8 x 496
8 x 500 = 4,000
200
50 x 200
10,000
200
2 less than the sum of 9 and 8.
What is (9 + 8) - 2
200
Baldwin was collecting coins. He got 15 coins from his piggy bank and 4 coins from his brother. His father gave Baldwin 6 coins. Baldwin gave 3 of the coins to his friend Gabe. How many coins did Baldwin have left?
Write an expression.
(15 + 4 + 6) -3
200
There are 34 bags filled with coins. There are 32 coins in each bag. About how many coins are there in all?
30 x 30 = 900 coins
300
604 x 306
600 x 300 = 180,000
300
21 x 300
6,300
300
8 times the sum of 7 and 2.
What is 8 x (7 + 2)
300
Ella saved $44 in June, $44 in July, and $36 in August. Then Ella spent $8 on school supplies and $26 on new clothes. How much money does Ella have left?
Write an expression.
(44 + 44 + 36) - (8 + 26)
300
Preston counted the tiles on the gymnasium floor. The gym is 73 tiles long and 92 tiles wide. About what is the total number of tiles on the gymnasium floor?
70 x 90 = 6,300 tiles
400
6,708 x 38
7,000 x 40 = 280,000
400
4,000 x 3,000
12,000,000
400
18 decreased by 2 times the sum of 7 and 2.
What is 18 - 2 x (7 + 2)
400
Edward had 11 stickers. He bought 14 stickers from a store in the mall and got 10 stickers for his birthday. Then Edward gave 8 of the stickers to his sister and used 8 to decorate a greeting card. How many stickers does Edward have left?
Write an expression.
(11 + 14 + 10) - (8 + 8)
400
There are 6,000 tissues in each box. How many tissues are there in 4 boxes?
24,000 tissues
500
439 x 387
400 x 400 = 160,000
500
50 x 600
30,000
500
The quotient of 45 divided by 9 increased by 21.
What is (45 / 9) + 21.
500
Kirk and Hannah order eggs for $5.90, pancakes for $3.20, and 2 mugs of cocoa for $0.70 each. The tax is $0.85. How much change should they get from $15.00?
Write an expression.
15.00 - (5.90 + 3.20 + 0.70 + 0.70 + 0.85)
500
George saves $400 a month. How much money will he save in one year?