(+4) + (+7)= (+11)
1) First you would translate it to English
+ = have - = owe
ex.
(+4) + (+7)=11
have4 and have7
2) Second you add 4 and 7 and equals to 11
chips:
++++
+++++++
Number line:
Question 2:
(+9) - (+7)=
1) First you subtract 9 and 7 and equals to 2
2) Second you would find all the zero pairs
(+9) - (+7)= +2
have9 remove have7
Chips:
+++++++
+++++++++
Number line:
Question 3:
(+6) + (-8)= (+14)
Have6 and owe8
1) First make make zero for the -8
chips:
--------
+++++++
2) Now you are left with +8 chips now you will add the +8 and +6 equals to +14
++++++
++++++++
Question 4:
(+8) - (-5)=
Have8 remove owe5
1) First make zero for the -5
-----
+++++
2) Second now subtract +8 and +5and you'll be left with +3
+++++
++++++++
