Diagnostic

Math Diagnostic Test for Grade 3

TypeDiagnostic
GradeGrade 3
SubjectMath
Duration55 min
Questions11
Rating★ 5

About this preparation

Хочу зробити діагностичний тест з математики для учня Оскара, 3 клас, на 55 хвилин, середньої складності.

Reid Rachel
Preparation author

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 347 + 128?
465
475
485
495
Explanation: Add hundreds, tens, and ones: 300 + 100 = 400, 40 + 20 = 60, 7 + 8 = 15. Then 400 + 60 + 15 = 475.
2
What is 600 - 275?
325
335
425
225
Explanation: Subtract step by step: 600 - 200 = 400, then 400 - 70 = 330, then 330 - 5 = 325.
3
Which number has 5 hundreds, 2 tens, and 9 ones?
529
592
259
509
Explanation: 5 hundreds = 500, 2 tens = 20, and 9 ones = 9. Together they make 529.
4
What is 6 × 4?
10
18
24
28
Explanation: Multiplication means equal groups. 6 groups of 4 equals 24.
5
Which equation shows 24 shared equally into 6 groups?
24 + 6 = 30
24 - 6 = 18
24 ÷ 6 = 4
6 × 24 = 144
Explanation: Sharing equally is division. 24 divided by 6 equals 4.
6
A pencil costs 7 cents. How much do 5 pencils cost?
12 cents
25 cents
35 cents
50 cents
Explanation: Multiply the cost of one pencil by 5: 7 × 5 = 35.
7
Which fraction shows one half?
1/2
1/3
2/3
3/4
Explanation: One half means 1 out of 2 equal parts, written as 1/2.
8
What time is 30 minutes after 2:15?
2:30
2:45
3:00
3:15
Explanation: Add 30 minutes to 2:15. That gives 2:45.
9
Mia has 18 stickers. She gives 7 away. How many stickers does she have left?
9
10
11
12
Explanation: This is a subtraction problem: 18 - 7 = 11.
10
Which number is greatest?
408
480
408
448
Explanation: Compare the hundreds, then tens. 480 is greater than 448 and 408.
11
A rectangle has a length of 5 cm and a width of 3 cm. What is its perimeter?
8 cm
15 cm
16 cm
30 cm
Explanation: Perimeter means add all sides: 5 + 3 + 5 + 3 = 16 cm.

Want personalized tasks and a growth plan for your child?

We will match a tutor to your child's level and goals. After the first lesson — a personal plan to improve their knowledge.

Frequently asked questions

A diagnostic helps the tutor see the child's real level in 30–40 minutes: which topics are mastered and where the gaps are. Based on the result, the teacher builds an individual plan instead of working blind.

Yes, you can view all tasks and answers on this page. But the diagnostic is most useful in a lesson with a tutor who explains mistakes right away and adjusts the plan.

Roughly 30–40 minutes depending on the number of tasks and the child's pace. It is a full first lesson.