Grade 4
In a room are 8 rows of chairs with 7 chairs in each row. If only three-fourths of the chairs were occupied, how many chairs were empty?
14 chairs
What number divided by 1/3 will produce 315?
945
How many ten thousands are there in 2,234,188?
223
Write the product of 0.2 and 0.004 in scientific notation.
8 x 10-4
Solve for x in the equation |2x − 1| = 5.
x = 3
Maricar has 185 pencils. She gave 6 pencils to each student in her class. If she has fewer than 6 pencils left, how many students did Maricar have?
30 students
If 173 × 36 = 6228, what is 1.73 × 3.6?
6.228
Ana’s house is the fifth from one end of a street, and eighth from the other end. How many houses are there along this street?
12 houses.
Find the difference between 6/7 and its reciprocal.
13/42
A sack of rice weighs 25 kilograms. If the rice is to be divided equally among 8 families, how many grams of rice would each family receive?
3,125
I am a three digit number. I am larger than 399 and smaller than 500. Both my tens and ones digits are odd and their sum is 4. My ones digit is larger than the tens. What number am I?
413
What is the largest two-digit number which is divisible by 6 but not by 4?
90
What is the remainder when 3,837 is divided by 9?
3
What is 12% of 150?
18
The sum of three consecutive numbers is 93. What is the smallest number?
30
Amy sold 60 pillows and Nina sold 80 pillows. The pillows were all sold for the same price. The total amount of money received was $7,000. How much money did Nina receive?
$4,000
One-half kilo of used newspapers costs $ 36. How much does three-fourths of a kilo cost?
$54
Write the reciprocal of 1.4 as a fraction in lowest terms.
5/7
Eighteen is what percent of 48?
37.5%
The length of a rectangle is 4 cm longer than its width. If its area is 96 cm2, what is its length?
12 cm.
Arrange the following fractions from least to greatest: 3/10, 5/8, 2/7, 3/5.
3
2/7, 3/10, 3/5, 5/8
What is the sum of all prime numbers between 30 and 50?
199
The base of an isosceles triangle is 10 cm and one of its legs is 18 cm. What is its perimeter?
46 cm.
Find two real numbers that are 8/5 away from −3/2.
31/10 and 1/10
The exterior angle adjacent to the vertex angle of an isosceles triangle is 110◦. What is the measure of a base angle?
550