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Taking the Fear
out of Math
next
#9
Subtracting
Signed Numbers
Using the Number Line
-9 -8 -7 -6 -5 -4 -3 -2
© Math As A Second Language
-1
All Rights Reserved
0 +1 +2 +3 +4 +5 +6 +7 +8 +9
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Directions for the Teacher
Click each time next appears.
Review signed numbers with your
students.
Students should solve the
subtraction signed number
problems on a separate
piece of paper.
© Math As A Second Language
All Rights Reserved
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Add
Face Positive
Subtract Face Negative
Positive
Walk Forward
Negative Walk Backward
next
+3
start
–
face negative
-9 -8 -7 -6 -5 -4 -3 -2
© Math As A Second Language
-1
All Rights Reserved
+3
=0
walk forward
answer
0 +1 +2 +3 +4 +5 +6 +7 +8 +9
next
+5
start
–
face negative
-9 -8 -7 -6 -5 -4 -3 -2
© Math As A Second Language
-1
All Rights Reserved
+3
+
= 2
walk forward
answer
0 +1 +2 +3 +4 +5 +6 +7 +8 +9
next
-4
start
–
face negative
-9 -8 --7
7 -6 -5 -4 -3 -2
© Math As A Second Language
-1
All Rights Reserved
+3
=
-7
walk forward
answer
0 +1 +2 +3 +4 +5 +6 +7 +8 +9
next
-4
start
–
face negative
-9 -8 -7 -6 -5 -4 -3 -2
© Math As A Second Language
-1
All Rights Reserved
-2
=
-2
walk backward
answer
0 +1 +2 +3 +4 +5 +6 +7 +8 +9
next
-3
start
–
face negative
- 9 - 8 -7 - 6 - 5 - 4 - 3 - 2
© Math As A Second Language
-1
All Rights Reserved
+3
=
-6
walk forward
answer
0 +1 +2 +3 +4 +5 +6 +7 +8 +9
next
+5
start
–
face negative
-9 -8 -7 -6 -5 -4 -3 -2
© Math As A Second Language
-1
All Rights Reserved
-3
=
+8
walk backward
answer
0 +1 +2 +3 +4 +5 +6 +7 +8 +9
next
-8
start
–
face negative
-9 -8 -7 -6 -5 -4 -3 -2
© Math As A Second Language
-1
All Rights Reserved
-9
=
+1
walk backward
answer
0 ++11 +2 +3 +4 +5 +6 +7 +8 +9
next
+5
start
–
face negative
-9 -8 -7 -6 -5 -4 -3 -2
© Math As A Second Language
-1
All Rights Reserved
+9
=
-4
walk forward
answer
0 +1 +2 +3 +4 +5 +6 +7 +8 +9
next
-6
start
–
face negative
- 9 - 8 -7 - 6 - 5 - 4 - 3 - 2
© Math As A Second Language
-1
All Rights Reserved
-6
= 0
walk backward
answer
0 +1 +2 +3 +4 +5 +6 +7 +8 +9
next
+4
start
–
face negative
-9 -8 -7 -6 -5 -4 -3 -2
© Math As A Second Language
-1
All Rights Reserved
-4
=
+8
walk backward
answer
0 +1 +2 +3 +4 +5 +6 +7 ++88 +9
P
P
N
P
Ready
to get
Chippy
N
P
N
N
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All Rights Reserved
next
Click on the correct answer.
+6
–
+4
© Math As A Second Language
All Rights Reserved
+2
-4
Click on the correct answer.
-6
–
+4
© Math As A Second Language
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-2
-4
Click on the correct answer.
+6
+8
© Math As A Second Language
All Rights Reserved
–
-2
-8
Click on the correct answer.
-2
–
+8
© Math As A Second Language
All Rights Reserved
+6
-8
Click on the correct answer.
-3
–
+7
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+4
-7
Click on the correct answer.
+6
+14
© Math As A Second Language
All Rights Reserved
–
-8
-14
Click on the correct answer.
+3
–
+6
© Math As A Second Language
All Rights Reserved
+9
-6
Click on the correct answer.
-5
–
+5
© Math As A Second Language
All Rights Reserved
-10
-5
Click on the correct answer.
+5
–
+3
© Math As A Second Language
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+8
-3
Click on the correct answer.
+9
+17
© Math As A Second Language
All Rights Reserved
–
-8
-17
Click on the correct answer.
+5
–
+4
© Math As A Second Language
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+9
-4
Click on the correct answer.
+12
+6
© Math As A Second Language
All Rights Reserved
–
+6
-6
Click on the correct answer.
-6
–
+11
© Math As A Second Language
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+5
-11
Click on the correct answer.
+5
–
+15
© Math As A Second Language
All Rights Reserved
-10
-15
Click on the correct answer.
+7
–
+2
© Math As A Second Language
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+9
-2
Thanks
N
P
for
“Chipping in”
with
the correct answers!
© Math As A Second Language
All Rights Reserved
next
next
Positively
Amazing
I am positive that the number line
helped you to understand
subtraction of signed numbers.
© Math As A Second Language
All Rights Reserved