3 years ago

Use mental math to find the sum of 43 and 57

Mathematics

2 answers:

Feliz [49]3 years ago

6 0

Answer: 100

Step-by-step explanation:

You know that 3+7=10

You know that 40+50=90

90+10=100

Vedmedyk [2.9K]3 years ago

3 0

Answer:

100

Step-by-step explanation:

43+57=100

I added 3+7=10

Then 40+50=90 and added them

90+10=100

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