Near tens Start Thinking What numbers are shown?
A
B
C D
0 10 20 30 40 50 60 70 80 90 100
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3
7
30
33
40
33 − 3 = 30
33 + 7 = 40
3
7
40
43
50
43 − ? = 40
43 + ? = 50
?
?
40
44
50
44 − ? = 40
44 + ? = 50
176
SK_G2_SB_13_178-181.indd 176
01/12/2021 14:08
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