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Adding integers with block models
These blocks total +4
Each  blue block
represents +1
1.
Write the addition expression that represents the
block model.
 −1
−9
+1
+9
2.
Write the addition expression that represents the
block model.
 −2
−8
+2
+8
These blocks total -4
Each red block
represents -1
3.
Write the addition expression that represents the
block model.
 −1
−9
+9
+1
4.
Write the addition expression that represents the
block model.
−3
−7
+7
+3
5.
Write the addition expression that represents the
block model.
−2
−8
+2
+8
Write the addition expression that represents the
block model.
6.
 0
−8
+8
+4
7.
Write the addition expression that represents the
block model.
−2
−6
+2
+6
8.
a
Write the addition expression for the answer
 choice that does not equal zero.
c
All answer choices equal zero except one.
Which choice does NOT equal zero?
d
b
9.
Write the addition expression for the answer choice
that does not equal zero.
c
a
All answer choices equal zero except one.
Which choice does NOT equal zero?
d
b
10.
Write the expression for the answer choice that does
not equal +2.
c
a
All answer choices equal +2 except one.
Which choice does NOT equal +2?
d
b
11.
Write the expression for the answer choice that
 does not equal +3.
c
a
All answer choices equal +3 except one.
Which choice does NOT equal +3?
d
b
Write the expression that represents the block model.
12.
 +2
−2
+6
-6
13.
Write the expression that represents the block model.
 +3
−3
-7
+7
14.
Write the expression that represents the block model.
 +8
−8
+2
-2
15.
Write the expression that represents the answer
choice that does not equal −3.
a
c
All answer choices equal -3 except one.
Which choice does NOT equal -3?
d
b
16.
Write the expression for the answer choice that does
not equal −2.
c
a
All answer choices equal -2 except one.
Which choice does NOT equal -2?
d
b
17.
Write the expression that represents the model.
 −1
−9
+9
+1
18.
Write the expression that represents the model.
 −1
−3
+3
-2
19.
Write the expression that represents the model.
 −1
+1
+4
-4
Write the expression that represents the model.
20.
 −1
−9
+9
+1
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