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Serjik [45]
3 years ago
7

Solve each equation mentally.

Mathematics
2 answers:
motikmotik3 years ago
7 0
16. 4 (9*4=36) 
17. 6 (6*11=66)
18. 8 (10*8=80)
19. 9 (9*5=45)
20. 48 (4*12=48)
21. 13 (13*2=26)



andreyandreev [35.5K]3 years ago
4 0
16.4
17.6
18.8
19.9
20.48
21.13
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Answer:

B. 2/3

Step-by-step explanation:

To solve this we have to take into account this axioms:

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