Addition, Subtraction, Multiplication and Division: Only addition and subtraction

Question 1

$$ 25-5-3-17+13= $$

Question 2

$$ 25+6-19+7= $$

Question 3

$90-2+9-8=\text{ ?}$

Examples with solutions for Addition, Subtraction, Multiplication and Division: Only addition and subtraction

$25-5-3-17+13=$

Due to the fact that the exercise only involves addition and subtraction operations, we will solve it from left to right:

$25-5=20$

$20-3=17$

$17-17=0$

$0+13=13$

$13$

$25+6-19+7=$

Due to the fact that the exercise only involves addition and subtraction operations, we will solve it from left to right:

$25+6=31$

$31-19=12$

$12+7=19$

$19$

$90-2+9-8=\text{ ?}$

According to the order of operations, we will solve the exercise from left to right since the only operations in it are addition and subtraction:

$90-2=88$

$88+9=97$

$97-8=89$