Arithmetic/Part I Review and Test

Notes

Remember that:

Any time a number smaller than (LESS than) 0 is added to a number larger than (GREATER than) 0 you would use subtraction as shown below:

   5+(-3)=5-3, therefore 5+(-3)=2

Any number subtracted from itself always equals 0.

Any number above 9 will always have more than one digit.

The number line is very important in calculating numbers smaller than 0.

Part I Test

Part 1 of 3.

a) 2+2=

b) 2+4=

c) 5+3=

Part 2 of 3. Numbers greater than 9

a) 10+11=

b) 12+12=

c) 14+10=

Part 3 of 3. Numbers smaller than 0

a) -4-4=

b) -2+5=

c) 5-(-2)=

BONUS

4×5=

End of the test. Scroll down to check your answers.

Answers

Part 1 of 3 answers:

a) 4     b) 6    c) 8

Part 2 of 3 answers:

a) 21    b) 24  c) 24

Part 3 of 3 answers:

a) -8     b) 3    c) 7

BONUS answer:

  20