Decimals
At the grocery store, an 8-ounce box of crackers costs $6.49 and a 4-ounce box of crackers costs $3.29. If Rachel purchases two of the smaller boxes and one of the larger boxes, what is the total cost?
3.29 + 3.29 + 6.49 = 13.07
Mary needs 1 1/5 yards of cloth to make a shirt. She has 3 2/5 yards. How many yards will be left over after Mary makes her shirt?
Subtract: 3 2/5 – 1 1/5 = 2 1/5 yards.
Joyce’s family took a long car trip. They traveled 651 miles the first day, 491 the second day, and 537 miles the third day. How many miles did they travel altogether?
Altogether is a code word for add them up. 651 + 491 + 537 = 1,679
Mrs. Weeks gave her twins Katie and Allie 4 cookies each. Mrs. Marciano gave her triplets Lauren, Jenna, and Steven 6 cookies each. How many cookies were given out altogether?
First, multiply 4 cookies by 2 girls to get 8 cookies. Then multiply 6 cookies by 3 kids to get 18. Then add them together: 8 + 18 = 26.
Rosa has $12.53 in her wallet. What is that amount rounded to the nearest dollar?
$12.53 rounded to the nearest dollar is $13. Answer c is not to the nearest dollar. If the amount of cents is over 50, you have to round up, so it is not answer b. And answer a is to the nearest ten dollars, not the nearest dollar
Stacy practiced her flute for 2.5 hours on Monday, 1.25 hours on Tuesday, and 1.35 hours on Wednesday. How many hours did she practice altogether?
2.5 + 1.25 + 1.35 = 5.1. When figuring out this question, make sure you line up the decimal points correctly. If you picked answer c you probably didn’t line up your decimal points properly.
Solve: 1/7 + 3/7 =
1/7 + 3/7 = 4/7 .
Solve (8,964 + 2,876) + 1,123
12,963
Calculate the product of 93 and 84, then add to 171
Finding the product means multiplying, and 93 × 84 = 7,812. Then add 7,812 plus 171 to get 7,983.
About 347 people come into Gloria’s Bakery every day. Estimate the number of people who come into the store in 1 week if the store is open every day of the week?
First multiply 347 × 7 days in one week, to get 2,429. Of the answer choices, 2,450 is by far the closest.
What is 4.3 × 5.2 ?
4.3 × 5.2 = 22.36.
Subtract: 3 2/5 – 1 1/5 = 2 1/5 yards
2 1/2 .
The Paulson family drove 1,102 miles from Los Angeles to Cheyenne, Wyoming. From Cheyenne they drove 1,158 miles to Portland, Oregon. From Portland they drove 967 miles back to Los Angeles. What was the total distance of the Paulson’s trip?
3,227
Richard had 492 cards. He sold 233 of them. A week later he bought 42 new ones. How many does he have now?
First subtract: 492 – 233 = 259. Then add the new ones he bought: 259 + 42 = 301.
What is the estimated answer for 43 + 31? (Round to the nearest whole number.)
43 rounds to 40 and 31 rounds to 30; 40 + 30 = 70.
What is the product of 1.8 and 7.6?
When you are asked to find the product, you are being asked to multiply. 1.8 × 7.6 = 13.68
John has 3 1/2 cookies. Evelyn has 4 1/2 cookies. How many cookies do they have in all?
8.
Louisa and her family picked cherries one afternoon. In one bucket, Louisa counted 374 cherries, and in another bucket she counted 287 cherries. How many cherries were there in the 2 buckets.
661
Ben had several old books and magazines that he wanted to sell. He had 26 books and 33 magazines. After his friend Pat bought some books and magazines there were 21 books and 23 magazines left. How many books did Pat buy?
This question may seem harder than it actually is because they give you extra information that you don’t need. Ben started with 26 books and had 21 left. 26 – 21 = 5
What is the estimated answer for 2,904 + 3,210? (Round to the nearest thousand.)
2,904 rounds to 3,000, and 3,210 also rounds to 3,000. 3,000 + 3,000 = 6,000
What is the sum of 88.23, 91.05, and 75.46?
This question is asking you to add the numbers together, and 88.23 + 91.05 + 75. 46 = 254.74.
Freddy has 6 3/4 yards of fence. He uses 4 1/4 yards. How many yards does he have left?
2 1/2 .
Calculate 4,321 – 1,234
3,087
Mrs. Gundlach needs 135 bricks to finish a wall in her backyard. If bricks are only sold in groups of 25, how many bricks will she have to buy
Bricks are only sold in groups of 25, so that rules out answers a and c because they are not divisible by 25. 25 × 6 = 150, and 25 × 7 = 175. You would have enough bricks by buying only 150, so the correct answer is b.
The car Fritz wants to buy costs $9,460. He sold his old car for $4,950. Which is the best estimate of how much more money Fritz needs to buy the car he wants?
First figure out how much more money he needs: 9,460 – 4,950 = 4,510. That number is between $4,200 and $4,700.