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Alina [70]
3 years ago
7

30-20 show your work using quick tens

Mathematics
2 answers:
Mashutka [201]3 years ago
8 0
30-20=10 10 is the answer
gavmur [86]3 years ago
6 0
30-10=20
20-10=10

or
10+20=30
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The answer to question 21 please??
Ad libitum [116K]

Answer:

A = 1/2*(2 + 8)*4 + 1/2*(8 + 7)*2 = 35

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Step-by-step explanation:

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3 years ago
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4 0
3 years ago
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