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문자의 사용과 식의 계산

[수학]

중학교 1학년 수학 문자의 사용과 식의 계산 단원 연습 문제

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카드목록

Q: \[b \times 4 \times a \]

A: \[ 4ab \]

Q: \[(-0.1) \times x \times y \]

A: \[-0.1xy\]

Q: \[a \times 3 \times b \times a \]

A: \[3a^2b\]

Q: \[(x-y) \times (-2)\]

A: \[-2x-2y)\]

Q: \[-2 \div x\]

A: \[ -\frac{2}{x} \]

Q: \[ a \times b \div 4 \]

A: \[ \frac{ab}{4} \]

Q: \[ 2a \times (-4) \]

A: \[ -8a \]

Q: \[ -6y \times 5 \]

A: \[ -30y \]

Q: \[ -2 \times (-4x+3) \]

A: \[ 8x-6 \]

Q: \[ (8+6b) \div (-2) \]

A: \[ -4-3b \]

Q: \[ 5x+2x \]

A: \[ 7x \]

Q: \[ 4y+y-3y \]

A: \[ 2y \]

Q: \[ 6a-3+2a+8 \]

A: \[ 8a+5 \]

Q: \[ (2x-5)+(-x+3) \]

A: \[ x-2 \]

Q: \[ 5(x+2)-(3x-1) \]

A: \[ 2x+11 \]

Q: \[ -3(3a-1)+2(-a+2) \]

A: \[ -11a+7 \]

Q: \[ \frac{6a-4}{2}-3(a-2) \]

A: \[ 4 \]

Activity Logs

There are 2 new tasks for you in “AirPlus Mobile App” project:
Added at 4:23 PM by
img
Meeting with customer
Application Design
img
img
A
In Progress
View
Project Delivery Preparation
CRM System Development
img
B
Completed
View
Invitation for crafting engaging designs that speak human workshop
Sent at 4:23 PM by
img
Task #45890merged with #45890in “Ads Pro Admin Dashboard project:
Initiated at 4:23 PM by
img
3 new application design concepts added:
Created at 4:23 PM by
img
New case #67890is assigned to you in Multi-platform Database Design project
Added at 4:23 PM by
Alice Tan
You have received a new order:
Placed at 5:05 AM by
img

Database Backup Process Completed!

Login into Admin Dashboard to make sure the data integrity is OK
Proceed
New order #67890is placed for Workshow Planning & Budget Estimation
Placed at 4:23 PM by
Jimmy Bold

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