Many students need to do more calculation problems to improve their speed. I sorted out some calculation problems of rational number addition and subtraction. Let's have a look.

Rational number addition exercise 1, (-6)+(-8)= 1

2、(-4)+2.5=

3、(-7)+(+7)=

4、(-7)+(+4)=

5、(+2.5)+(- 1.5)=

Rational number calculation problem -5+9=

-6+-4=

-7+- 15=

46 1.5+(-2.3)=

-2.4+(- 1.7)=

-9+6=

-2.5+(- 1.78)=

Mixed operation of rational numbers 1,12-(-18)+(-7)-15?

2、(-40)-(+28)-(- 19)+(-24)-(32)

3、(+4.7)-(-8.9)-(+7.5)+(-6)?

4、(-40)-(+28)-(- 19)+(-24)-(32)

5、-6-8-2+3.54-4.72+ 16.46-5.28

The above are some calculation problems of rational numbers, I hope to help you.