Digital SAT Math Practice #4

Digital SAT Math Practice #4

9th - 12th Grade

10 Qs

quiz-placeholder

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Digital SAT Math Practice #4

Digital SAT Math Practice #4

Assessment

Quiz

Mathematics

9th - 12th Grade

Medium

Created by

Nguyễn Hà

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

I only

I and II only

I and III only

I and II and III

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

For any positive integer n, τ(n) represents the number of positive divisors of n.
What is the value of τ(τ(τ(12)))?

2

3

4

6

Answer explanation

Since τ(12) = 6, τ(τ(τ(12))) = τ(τ(6)). Since τ(6) = 4, then τ(τ(6)) = τ(4) = 3.

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is equal to (78 × 79)10?

727

782

7170

49720

Answer explanation

First, multiply inside the parentheses:

78 × 79 = 717;

then raise to the 10th power: (717)10 = 7170.

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

3

4

5

6

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If 0 < x < 1, which of the following lists the numbers in decreasing order?

6.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

What is the value of 24 ÷ 2-4?

Answer explanation

24 : 2-4 = 28 = 256

7.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

What is the value of |(-2 - 3) - (2 - 3)|?

Answer explanation

|(-2 - 3) - (2 - 3)| = |(-5) - (-1)| = |-5 + 1| = |-4| = 4

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