Same Difference
6+5=
11
What number goes in the blank to make the number sentence true?
3+7=__+3
a. 10
b.4
c.7
d.13
c.7
10-2=
8
9+3=12 so 12-3=
9
Which equation will give you same difference as
17-5-2=10
a. 17+5+2=
b.17-2-5=
c.17-10=
d.17-10-2=
b.17-2-5=
Which 2 addition facts have the same sum?
2+5 and 5+7
2+5 and 5+2
2+5 and 7+2
2+5 and 5+5
2+5 and 5+2
What number goes in the blank to make the number sentence true?
6+9=__+6
a. 15
b. 9
c. 21
d. 3
b. 9
15-3=
12
What addition problem can be used to check this subtraction problem?
10-5=5
5+5=10
Which equation will give you same difference as
20-5-6=9
a. 20+5+6=
b. 20-5-9=
c.20-6-5=
d.20-9-6=
c.20-6-5=
Which 2 addition facts have the same answer?
A. 9+1 and 1+10
B. 9+1 and 10+1
C. 9+1 and 1+9
D.9+1 and 10+10
C.9+1 and 1+9
What number goes in the blank to make the number sentence true?
__+2+5=8+6
a.7
b.14
c. 21
d.3
a. 7
John has 14 toys. He let his brother borrow 6 toys. How many toys does he have now?
14-6=
8
What addition problems can be used to check this subtraction problem?
15-3=12
3+12=15
12+3=15
Write the equation that has the same difference as
21-2-9=10
21-9-2=10
What 2 facts have a sum of 9? Choose 2.
A. 1+6
B. 7+3
C. 3+6
D. 4+2
E. 8+1
C. 3+6 E. 8+1
What number goes in the blank to make the number sentence true?
___+8+3= 9+7
5
Justin counted 20 fingers on four hands. He counted down 5 to find how many fingers are on three hands.
20-5=
15
What subtraction problems can be used to check this addition problem?
6+4=10
10-6=4
10-4=6
Write the equation that has the same difference as
25-15-10=0
25-10-15=0
Laila had 14 pencils. Zavion gave her 4 more. How many pencils does she have now?
14+4=
18
What number goes in the blank to make the number sentence true?
_+5+9= 8+4+3
1
Morgan counted 25 fingers on 5 hands. She wanted to know how many fingers were on 3 hands so she counted down ten. How many fingers did she count on 3 hands?
25-10=
15
What subtraction problem can be used to check this addition problem?
10+9=19
19-10=9
19-9=10