Which mathematical sentence best represents the given block model?
19.
48
30
?
A. 48 + 30 =
?
B. 48-30 =
7
C. 48 x 30 =
D. 48 + 30 =
?
?
?
20.
42
68
B. 68 + 42=
?
?
= 68
A. 42+
?
D. 68 - 42 =
= 42
C. 68 x
?
#2
19.
48
30
?
A. 48 + 30 =
?
B. 48-30 =
7
C. 48 x 30 =
D. 48 + 30 =
?
?
?
20.
42
68
B. 68 + 42=
?
?
= 68
A. 42+
?
D. 68 - 42 =
= 42
C. 68 x
?
#2
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Answer:
A. 78
B. 18
C. 1,440
D. 78
B. 110
A. 110
D. 26
C. 2,856
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