Top 10 Difficult Questions for Grade 4 Mathematics
Question Number: 1
What is the greatest number of obtuse angles that can be found in a quadrilateral?
A)
B)
C) Correct Answer
D)
1
2
3
4
Explanation:
A quadrilateral can have at most three obtuse angles. A quadrilateral with more than three
obtuse angles is impossible to draw.
4.G.2
Question Number: 2
Fill in the blank to make a true statement.
"A number cannot be multiplied by _______ ."
A)
B)
C) Correct Answer
D)
one
one-half
zero
None of the above
Explanation:
Multiplication of any pair of numbers is possible. There are no exceptions.
4.NBT.5
Question Number: 3
Describe the angles found in this figure.
A)
B)
C)
D) Correct Answer
2 right angles and 3 acute angles
3 right angles and 2 obtuse angles
2 right angles, 2 obtuse angles, and 1 acute angle
2 right angles and 3 obtuse angles
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Explanation:
This figure has a total of five angles. Two of the angles are right angles. The other three
angles are obtuse angles (angles measuring more than 90 degrees.)
4.G.1
Question Number: 4
Which of the following number sentences illustrates the Associative Property of
Multiplication?
A)
B)
C) Correct Answer
D)
4x0=0
77 x 1 = 1 x 77
(2 x 4) x 5 = 2 x (4 x 5)
13 x 7 = (10 x 7) + (3 x 7)
Explanation:
The order in which numbers are grouped and multiplied does not change the product.
4.NBT.5
Question Number: 5
Anthony listed the multiples of 6, beginning with 6. Which of the following patterns would
Anthony notice?
A)
B)
C)
D) Correct Answer
All of the numbers in his list were even.
The ones digits in his list followed this pattern: 6, 2, 8, 4, 0, 6, 2, 8, 4, 0,
...
The sum of the digits in each of his numbers was always divisible by
three.
He noticed all of these patterns.
Explanation:
When listing the multiples of 6, all three of these patterns would occur. {6, 12, 18, 24, 30, 36,
42, 48, 54, 60, . . . }
4.OA.5
Question Number: 6
By the Associative Property of Multiplication, the expression (4 x 5) x 6 must have the same
value as which of the following?
A)
B)
C) Correct Answer
D)
(4 x 6) x 5
4x6+4x5
4 x (5 x 6)
4x6+5
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Explanation:
When applying the Associative Property, the order of the numbers stays the same, but the
grouping of the numbers changes.
4.NBT.5
Question Number: 7
Which of the following expressions has a sum that is closest to 1,000?
A)
B)
C) Correct Answer
D)
725 + 375
234 + 786
392 + 618
487 + 497
Explanation:
The sums are as follows: 725 + 375 = 1,100; 234 + 786 = 1,020; 392 + 618 = 1,010; 487 + 497 =
984. The closest sum to 1,000 is 392 + 618 = 1,010.
4.NBT.4
Question Number: 8
What number acts as the identity element in addition?
A)
B) Correct Answer
C)
D)
-1
0
1
None of these
Explanation:
Any number plus 0 is always that number, so 0 is the additive identity.
4.NBT.4
Question Number: 9
1
F Find 6X
4
A)
B)
C)
D)
1
24
3
1
6
4
None of thesee
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Explanation:
To multiply a whole number by a unit fraction, multiply the whole number by 1 to get the
numerator in the product. The denominator will not change. The product in this exercise
would be:
6
4
4.NF.4
Question Number: 10
The number sentence 4 x 1 = 4 illustrates which mathematical property?
A)
B) Correct Answer
C)
D)
The Associative Property of Multiplication
The Identity Property of Multiplication
The Distributive Property
The Associative Property of Multiplication
Explanation:
Any number times 1 will always equal that number.
4.NBT.5
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