Thuy Duong

Thuy Duong

7th Grade

10 Qs

quiz-placeholder

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Thuy Duong

Thuy Duong

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Medium

Created by

Thư Đặng

Used 2+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

1, Số x12 không bằng số nào trong các số sau đây?

A. x28 : x16

B. x4 . x8

C. x2 . x6

D. (x3)4

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

2, (-1/3)4=

A. 1/81

B. 4/81

C. -1/81

D. -4/81

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

3, Số x mà 2x=(22)3 là:

A. 5

B. 6

C. 26

D. 8

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

4, Chọn đáp án sai:

A. (−2019)0 = 1

B. (0,5)(0.5)2 = 1/2

C. 46 : 44 = 16

D. (−3)3 . (−3)2= (−3)5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

5, Số 224 viết dưới dạng lũy thừa với số mũ bằng 8 là:

A. 88

B. 98

C. 68

D. Một đáp số khác

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

6, Nếu √x= 3 thì  bằng: x2 = 

A.3

B.9

C.27

D.81

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

7, Cạnh của bàn cờ vua bằng bao nhiêu, biết bàn cơ vua hình vuông có diện tích bằng 400 cm2?

A.12 cm

B. 20 cm

C. 40 cm

D. 10 cm

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