treytonmesser
08.04.2020 •
Mathematics
Explain how to find 2,987+4,278 with mental math. What property does your strategy use ?
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Ответ:
7265
Step-by-step explanation:
2000+4000 = 6000
987 + 278 = 1265
6000 + 1265 = 7265
Ответ: