# 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) ${\displaystyle 2+2=}$
b) ${\displaystyle 2+4=}$
c) ${\displaystyle 5+3=}$

Part 2 of 3. Numbers greater than 9

a) ${\displaystyle 10+11=}$
b) ${\displaystyle 12+12=}$
c) ${\displaystyle 14+10=}$

Part 3 of 3. Numbers smaller than 0

a) ${\displaystyle -4-4=}$
b) ${\displaystyle -2+5=}$
c) ${\displaystyle 5-(-2)=}$

BONUS

${\displaystyle 4\times 5=}$

a) 4     b) 6    c) 8


a) 21    b) 24  c) 24


a) -8     b) 3    c) 7

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