Operations
A school has 128 pencils. The teacher gives 37 pencils to students. How many pencils are left?
91
Which decimal is equal to 3/10?
0.3
What is the value of this expression?
6 × 4 + 8
72
A student solved this problem:
347 + 128 = 465
What mistake did the student make?
A. They added the ones place incorrectly.
B. They added the tens place incorrectly.
C. They added the hundreds place incorrectly.
D. They subtracted instead of added.
B. They added the tens place incorrectly.
A rectangle has a length of 9 units and a width of 4 units. What is the area?
There are 24 students going on a field trip. Each van holds 6 students. How many vans are needed?
4
Which number is greater?
0.45 or 0.5
0.5
Which equation matches this story?
A jar has 120 marbles. There are 45 red marbles and 30 blue marbles. The rest are green. Which equation finds g, the number of green marbles?
A. g = 120 + 45 + 30
B. g = 120 - 45 - 30
C. g = 120 - 45 + 30
D. g = 45 + 30 - 120
B. g = 120 - 45 - 30
A student solved this problem:
6 × 24 = 120
What mistake did the student make?
A. They multiplied 6 × 2 instead of 6 × 20.
B. They added instead of multiplied.
C. They divided 24 by 6.
D. They forgot to multiply by 6.
A. They multiplied 6 × 2 instead of 6 × 20.
A rectangular prism has a length of 5 units, a width of 3 units, and a height of 4 units. What is the volume?
60
Mia buys 5 notebooks. Each notebook costs $3.75. How much does she spend?
$18.75
A recipe needs 3/4 cup of milk. Jay already added 1/4 cup. How much more milk does he need?
2/4 or 1/2
What is the value of this expression?
(8 × 5) + (36 ÷ 6)
46
A student solved this expression:
8 + 4 × 6 = 72
What mistake did the student make?
A. They multiplied first.
B. They added first instead of multiplying first.
C. They subtracted instead of multiplying.
D. They divided first.
B. They added first instead of multiplying first.
Which shape always has 4 equal sides?
Square
A library has 375 books. They put the books equally on 15 shelves. Then 6 books are removed from each shelf. How many books are left on each shelf?
19
Which list is in order from least to greatest?
A. 0.7, 0.07, 0.77
B. 0.07, 0.7, 0.77
C. 0.77, 0.7, 0.07
D. 0.7, 0.77, 0.07
B. 0.07, 0.7, 0.77
A student says the answer to 9 + 3 × 4 is 48 because 9 + 3 = 12 and 12 × 4 = 48. What mistake did the student make?
A. They added wrong.
B. They multiplied wrong.
C. They forgot to multiply before adding.
D. They forgot to subtract.
Answer: C. They forgot to multiply before adding.
A student solved this problem:
Maria had $25. She bought 3 notebooks that cost $4 each. The student wrote:
25 - 3 + 4 = 26
What mistake did the student make?
A. They should have added 3 and 4 first.
B. They should have multiplied 3 × 4 first.
C. They should have divided 25 by 4.
D. They should have subtracted 3 from 4.
B. They should have multiplied 3 × 4 first.
A garden is shaped like a rectangle. It is 12 feet long and 7 feet wide. A fence goes all the way around it. How many feet of fencing are needed?
38
A school orders 18 boxes of markers. Each box has 24 markers. The art teacher gives 156 markers to students. How many markers are left?
276
A student ran 2.45 miles on Monday and 1.8 miles on Tuesday. How many miles did the student run altogether?
4.25 miles
Which expression matches this situation?
A movie theater sold 8 adult tickets and 12 child tickets. Adult tickets cost $9 each, and child tickets cost $6 each. Which expression shows the total amount of money made?
A. 8 + 12 + 9 + 6
B. 8 × 9 + 12 × 6
C. 8 × 12 + 9 × 6
D. 8 + 9 × 12 + 6
B. 8 × 9 + 12 × 6
A student solved this problem:
A school bought 15 boxes of pencils. Each box had 24 pencils. The school gave 87 pencils to students.
The student wrote:
15 + 24 - 87
What mistake did the student make?
A. They should have multiplied 15 × 24 first.
B. They should have divided 87 by 15 first.
C. They should have added 87 first.
D. They should have subtracted 24 from 15.
A. They should have multiplied 15 × 24 first
A box is shaped like a rectangular prism. It has a length of 10 inches, a width of 6 inches, and a height of 5 inches. What is the volume of the box?
300