- 3 7 + ( - 5 7 ) = -\frac{3}{7}+\left(-\frac{5}{7}\right)= - 7 3 + ( - 7 5 ) =

- số 8 14 -\frac{8}{14} - 1 4 8

- 3 11 - số 8 44 -\frac{3}{11}-\frac{8}{44} - 1 1 3 - 4 4 8

- 20 44 -\frac{20}{44} - 4 4 2 0

25 … N 25\ldots N 2 5 … N

Em hãy chọn dấu thích hợp điền vào ô trống

A={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}

Một ⊂ b A\tập con B Một ⊂ b

Một ∈ b A\trong B Một ∈ b

Một ∉ b A\notin B Một ∈ / b

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Practice Problem

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Hard

Trí Nhân Nguyễn

FREE Resource

15 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Số 0,6 là ...

composite number

nguyên số

số tự nhiên

phân số

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$- 3 \frac{2}{5}$ $-3\frac{\text{}2}{\text{5}}$ $- 35$ là ....

composite number

đảo số

số tự nhiên

phân số

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$\frac{-135}{247}$ $\frac{\text{-135}}{\text{247}}$ $247$ là ...

nguyên số

số tự nhiên

phân số

đảo số

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

-1000 là ...

số tự nhiên

nguyên số

composite number

đảo số

FILL IN THE BLANK QUESTION

30 sec • 1 pt

$2, 5; \frac{5}{2}; 2 \frac{1}{2}$ $2,5\ ;\ \frac{\text{5}}{\text{2}\ };\ 2\frac{1}{2}\$ $2, 5; 2; 22$
The number on có điểm gì đặc biệt

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Có thể tìm được bao nhiêu số bằng số 0,5 không?

A number

Hải số

No number

Vô số

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$\frac{3}{5} + \frac{4}{5} =$ $\frac{3}{5}+\frac{4}{5}=$ $5 + 5 =$

$\frac{35}{5}$ $\frac{35}{5}$ $\frac{3}{5}$

$\frac{7}{10}$ $\frac{7}{10}$ $1 0$

$\frac{7}{5}$ $\frac{7}{5}$ $5$

$\frac{12}{25}$ $\frac{12}{25}$ $\frac{1}{2 5}$

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$- \frac{3}{7} + (- \frac{5}{7}) =$ $-\frac{3}{7}+\left(-\frac{5}{7}\right)=$ $- 7 + (- 7) =$

$\frac{2}{7}$ $\frac{2}{7}$ $7$

$- \frac{2}{7}$ $-\frac{2}{7}$ $- 7$

$- \frac{số 8}{14}$ $-\frac{8}{14}$ $- 1 4$

$- \frac{số 8}{7}$ $-\frac{8}{7}$ $- 7$

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$- \frac{3}{11} - \frac{số 8}{44}$ $-\frac{3}{11}-\frac{8}{44}$ $- 1 1 - 4 4$

$- \frac{20}{44}$ $-\frac{20}{44}$ $- \frac{2}{4 4}$

$- \frac{5}{11}$ $-\frac{5}{11}$ $- 1 1$

$- \frac{1}{11}$ $-\frac{1}{11}$ $- 1 1$

$\frac{1}{11}$ $\frac{1}{11}$ $1 1$

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$\frac{3}{5} - \frac{2}{3} =$ $\frac{3}{5}-\frac{2}{3}=$ $5 - 3 =$

$\frac{1}{15}$ $\frac{1}{15}$ $1 5$

$- \frac{1}{15}$ $-\frac{1}{15}$ $- 1 5$

$\frac{1}{5}$ $\frac{1}{5}$ $5$

$- \frac{1}{5}$ $-\frac{1}{5}$ $- 5$

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Số 0,6 là ...

- 3 2 5 -3\frac{\text{}2}{\text{5}} - 3 5 2 là ....

-135 247 \frac{\text{-135}}{\text{247}} 247 -135 là ...

-1000 là ...

2 , 5 ; 5 2 ; 2 1 2 2,5\ ;\ \frac{\text{5}}{\text{2}\ };\ 2\frac{1}{2}\ 2 , 5 ; 2 5 ; 2 2 1 The number on có điểm gì đặc biệt

Có thể tìm được bao nhiêu số bằng số 0,5 không?

3 5 + 4 5 = \frac{3}{5}+\frac{4}{5}= 5 3 + 5 4 =

- 3 7 + ( - 5 7 ) = -\frac{3}{7}+\left(-\frac{5}{7}\right)= - 7 3 + ( - 7 5 ) =

- 3 11 - số 8 44 -\frac{3}{11}-\frac{8}{44} - 1 1 3 - 4 4 8

3 5 - 2 3 = \frac{3}{5}-\frac{2}{3}= 5 3 - 3 2 =

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Discover more resources for Mathematics

$- 3 \frac{2}{5}$ $-3\frac{\text{}2}{\text{5}}$ $- 35$ là ....

$\frac{-135}{247}$ $\frac{\text{-135}}{\text{247}}$ $247$ là ...

$2, 5; \frac{5}{2}; 2 \frac{1}{2}$ $2,5\ ;\ \frac{\text{5}}{\text{2}\ };\ 2\frac{1}{2}\$ $2, 5; 2; 22$
The number on có điểm gì đặc biệt

$\frac{3}{5} + \frac{4}{5} =$ $\frac{3}{5}+\frac{4}{5}=$ $5 + 5 =$

$- \frac{3}{7} + (- \frac{5}{7}) =$ $-\frac{3}{7}+\left(-\frac{5}{7}\right)=$ $- 7 + (- 7) =$

$- \frac{3}{11} - \frac{số 8}{44}$ $-\frac{3}{11}-\frac{8}{44}$ $- 1 1 - 4 4$

$\frac{3}{5} - \frac{2}{3} =$ $\frac{3}{5}-\frac{2}{3}=$ $5 - 3 =$