About this preparation
Math diagnostic test, Grade 3: Place value, Addition and subtraction. 10 questions with answers and explanations. Topics: Place value, Addition and subtraction, Multiplication basics, Division basics, Fractions, Measurement, Time, Geometry. 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
What is the value of the digit 7 in the number 472?
Explanation: The 7 is in the tens place, so its value is 70.
Explanation: 368 + 125 = 493? Wait, let's check: 368 + 100 = 468, then +25 = 493. So the correct answer is 493.
Explanation: 700 - 268 = 432.
4
Which number sentence shows 4 groups of 3?
4 + 3 = 7
4 - 3 = 1
4 ÷ 3 = 1
Explanation: Four groups of 3 means multiplication: 4 × 3 = 12.
5
Which of these are equal to 12?
Explanation: 3 × 4 = 12, 6 × 2 = 12, and 24 ÷ 2 = 12.
6
A pizza is cut into 4 equal slices. What fraction of the pizza is one slice?
Explanation: One slice out of 4 equal slices is 1/4.
7
How many minutes are in 2 hours?
Explanation: 1 hour = 60 minutes, so 2 hours = 120 minutes.
8
Which shape has 4 equal sides and 4 right angles?
Triangle
Rectangle
Circle
Explanation: A square has 4 equal sides and 4 right angles.
9
Which number is closest to 500?
Explanation: 512 is 12 away from 500, which is closer than the other choices.
10
Which statements are true?
Explanation: A rectangle has 4 sides, a triangle has 3 sides, and a cube has 6 faces.