Practical Problems with decimals.

A coconut tree is 7.6 meters tall and a mango tree is 3.4 meters shorter that the coconut tree. Find the total height of the two trees.

Answer explanation

The total height of the coconut tree and the mango tree is the sum of their individual heights. Since the mango tree is 3.4 meters shorter than the coconut tree, the total height is 7.6 + (7.6 - 3.4) = 12.8 meters.

Tags

CCSS.7.NS.A.3

Rebecca saved $175.35 in June and $132.50 in July. Then she bought a bicycle for $195.80. How much of her savings from June and July was left?

Answer explanation

Rebecca saved $175.35 in June and $132.50 in July. She spent $195.80 on a bicycle. To find the amount left, subtract the cost of the bicycle from the total savings. Therefore, the amount left is $111.05.

Tags

CCSS.7.NS.A.3

Rachel and Sarah spent $8 on gasoline, $15.65 on lunch, and $5 each on gifts for Grandma. If the girls left home with $50, how much do they have left?

Answer explanation

Rachel and Sarah spent $8 on gasoline, $15.65 on lunch, and $5 each on gifts for Grandma. The total spent is $8 + $15.65 + ($5 x 2) = $33.65. They left home with $50, so they have $50 - $33.65 = $16.35 left.

Tags

CCSS.7.NS.A.3

Betsy made ribbons for school spirit day. Her roll of ribbon was 30 ft long. For each individual ribbon she needed 0.625 ft of ribbon. How many ribbons could she make from her roll?

Answer explanation

Betsy could make 48 ribbons from her roll of ribbon.

Tags

CCSS.6.NS.B.3

Pete bought 3 rolls of tape to seal boxes. Each roll contains 25.6 meters of tape. He uses 1.5 meters to seal each box. What is the total number of boxes Pete can seal with 3 rolls of tape?

Answer explanation

Pete can seal 51 boxes with 3 rolls of tape. Each roll contains 25.6 meters, and he uses 1.5 meters per box.

Tags

CCSS.7.NS.A.3

Sally want to buy an I pad mini for $299.99. She has saved $6.25 each week for 12 weeks. How much more money does Sally need to purchase the I pad mini?

Tags

CCSS.7.NS.A.3

Samuel went to his favorite fast food restaurant. The regular price of the meal is $5.75, but he has a coupon for $1.00. Samuel bought 4 of these meals. What is the total cost of these 4 meals?

Tags

CCSS.7.NS.A.3

Mrs. Farmer bought 2 bags of potatoes at $3.99 per bag and 4 onions at $0.39 per onion. About how much did Mrs. Farmer spend?

Tags

CCSS.5.NBT.B.7

Jim and Sam are working on a Boy Scout hiking badge. The badge requires a total of 50 miles. The boys hike 6.4 miles, 5.8 miles, 11.3 miles, 7.6 miles, and 5 miles on five different days. How many more miles remain to earn the hiking badge?

Tags

CCSS.7.NS.A.3

Kelsey charges $4.50 per hour for babysitting. If she works for 8 hours on Saturday and 6 hours on Sunday. How much will she earn?

Tags

CCSS.7.EE.B.3