About this preparation
Math diagnostic test, Grade 4: Place value and number comparison. 11 questions with answers and explanations. Topics: Place value and number comparison, Addition and subtraction, Multiplication and division, Fractions, Measurement and time, Word problems. Duration: 55 min.
Diagnostic tasks
Below is the full list of tasks with correct answers and explanations. In a lesson the tutor can hide the answers and reveal them after the student tries.
1
Which number is greater than 4,506?
Explanation: 4,560 is greater than 4,506 because the hundreds digit is larger.
Explanation: Add the numbers by place value: 3,482 + 1,759 = 5,241.
Explanation: Subtracting 468 from 900 gives 432.
Explanation: 7 groups of 6 equals 42.
Explanation: 56 shared equally into 8 groups gives 7 in each group.
6
Which fraction is equal to one-half?
Explanation: 2/4 simplifies to 1/2, so it is equal to one-half.
7
A pencil is 15 cm long. How many millimeters is that?
Explanation: 1 cm = 10 mm, so 15 cm = 150 mm.
8
What time is 30 minutes after 2:20?
Explanation: Adding 30 minutes to 2:20 gives 2:50.
9
Which number is the largest?
Explanation: 3,970 has the greatest value because 970 is larger than the other hundreds and tens groups.
10
Mia has 4 bags with 5 apples in each bag. How many apples does she have altogether?
Explanation: Multiply 4 × 5 to find the total number of apples.
11
A rectangle has a perimeter of 18 cm. If one side is 5 cm and the opposite side is also 5 cm, what is the other side length?
Explanation: Perimeter = 5 + 5 + x + x = 18, so 10 + 2x = 18 and x = 4.