COMPLETE ADDITION AND SUBTRACTION SENTENCES
About "Complete addition and subtraction sentences"
Complete addition and subtraction sentences :
On the web page, complete addition and subtraction sentences students can improve their skills in addition and subtraction.
Steps to be followed
Step 1 :
Let the missing term be "x"
Step 2 :
Use inverse operations to isolate "x".
Step 3 :
After using inverse operations, we find the the value of x.
Complete addition and subtraction sentences - Examples
Example 1 :
Find the missing term 27,395 + ________ = 27951
Solution :
Let us assume the missing term be "x"
To find the missing term, we can apply the inverse operation.
Here 27,395 is added to the missing term (x), in order to isolate x we have to subtract 27,395 on both sides
aaaaaaaaa 2 7 , 3 9 5 + x = 2 7 , 9 5 1 aaaaaaaaaaaaaaaa
aaaaaaaaa-2 7 , 3 9 5aaaaaa- 2 7 , 3 9 5 aaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaa--------------------aaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaax = + aaa 5 5 6aaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaa--------------------aaaaaaaaaaaaaaaaa
Hence the missing terms is 556
Example 2 :
Find the missing term 10,500 - ________ = 9998
Solution :
Let "x" be the missing term
So, 10500 - x = 9998
in order to isolate x, we need to subtract 10500 on both sides
10500 - x - 10500 = 9998 - 10500
0 - x = - 502
- x = - 502
By multiplying negative on both sides, we get
x = 502
Hence, the missing terms is 502.
Example 3 :
Find the missing term -4008 + ________ = 560
Solution :
Let "x" be the missing term
So, -4008 + x = 560
in order to isolate x, we need to add 4008 on both sides
-4008 + x + 4008 = 560 + 4008
0 + x = 4568
x = 4568
Hence, the missing terms is 4568.
Example 4 :
Find the missing term -77846 + ________ = 2987
Solution :
Let "x" be the missing term
So, -77846 + x = 2987
in order to isolate x, we need to add 77846 on both sides
-77846 + x + 77846 = 2987 + 77846
x = 80833
Hence, the missing terms is 80833.
Example 5 :
Find the missing term 9536 - ________ = 2605
Solution :
Let "x" be the missing term
So, 9536 - x = 2605
in order to isolate x, we need to subtract 9536 on both sides
9536 - x - 9536 = 2605 - 9536
- x = -6931
By multiplying negative on both sides, we get
x = 6931
Hence, the missing terms is 6931.
Example 6 :
Find the missing term 10869 - ________ = 20563
Solution :
Let "x" be the missing term
So, 10869 - x = 20563
in order to isolate x, we need to subtract 10869 on both sides
10869 - x - 10869 = 20563 - 10869
- x = 9694
By multiplying negative on both sides, we get
x = -9694
Hence, the missing terms is -9694.
Example 5 :
Find the missing term 9536 - ________ = 2605
Solution :
Let "x" be the missing term
So, 9536 - x = 2605
in order to isolate x, we need to subtract 9536 on both sides
9536 - x - 9536 = 2605 - 9536
- x = -6931
By multiplying negative on both sides, we get
x = 6931
Hence, the missing terms is 6931.
Example 7 :
Find the missing term 349 - ______ = 205
Solution :
Let "x" be the missing term
So, 349 - x = 205
in order to isolate x, we need to subtract 349 on both sides
349 - x - 349 = 205 - 349
- x = - 144
By multiplying negative on both sides, we get
x = 144
Hence, the missing terms is 144.
Example 8 :
Find the missing term 349 + ______ = 510
Solution :
Let "x" be the missing term
So, 349 + x = 510
in order to isolate x, we need to subtract 349 on both sides
349 + x - 349 = 510 - 349
x = 161
Hence, the missing terms is 144.
Example 9 :
Find the missing term 156 + ______ = 249
Solution :
Let "x" be the missing term
So, 156 + x = 249
in order to isolate x, we need to subtract 156 on both sides
156 + x - 156 = 249 - 156
x = 93
Hence, the missing terms is 93.
Example 10 :
Find the missing term -356 + ______ = 750
Solution :
Let "x" be the missing term
So, -356 + x = 750
in order to isolate x, we need to add 356 on both sides
- 356 + x + 356 = 750 + 356
x = 1106
Hence, the missing terms is 1106.
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