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Explain how you can use mental math to perform the following addition 61,438+54,579,+28,562
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Explain how you can use mental math to perform the following addition 61,438+54,579,+28,562

User Mihca
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1 Answer

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60,000+50,000+20,000= 130,000
1000+4000+8000= 13,000
400+500+500= 1,400
30+70+60= 160
8+9+2= 19
so
130,000 + 13,000 +1,400 +160+19 = 144579
User Sungjun
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