Question

agrupar y cambiar el orden de los términos para poder calcular la suma mentalmente 98 + 3 + 97 + 200 + 298 + 300 + 206 + 15 + 4 + 10 397 + 13 + 2 + 8 + 326 + 4 + 14 + 6 890 y 3 + 60 + 7 + 14 7 + 135 + 13 + 15 + 27 + 50 + 3 ​

Answer 1

Paso a Paso

Paso a Paso98+3+97+200+298+300+206+15+4+(10)(397)+13+2+8+326+4+14+(6)(890)

=101+97+200+298+300+206+15+4+(10)(397)+13+2+8+326+4+14+(6)(890)

=198+200+298+300+206+15+4+(10)(397)+13+2+8+326+4+14+(6)(890)

=398+298+300+206+15+4+(10)(397)+13+2+8+326+4+14+(6)(890)

=696+300+206+15+4+(10)(397)+13+2+8+326+4+14+(6)(890)

=996+206+15+4+(10)(397)+13+2+8+326+4+14+(6)(890)

=1202+15+4+(10)(397)+13+2+8+326+4+14+(6)(890)

=1217+4+(10)(397)+13+2+8+326+4+14+(6)(890)

=1221+(10)(397)+13+2+8+326+4+14+(6)(890)

=1221+3970+13+2+8+326+4+14+(6)(890)

=5191+13+2+8+326+4+14+(6)(890)

=5204+2+8+326+4+14+(6)(890)

=5206+8+326+4+14+(6)(890)

=5214+326+4+14+(6)(890)

=5540+4+14+(6)(890)

=5544+14+(6)(890)

=5558+(6)(890)

=5558+5340

3+60+7+(14)(7)+135+13+15+27+50+3

=63+7+(14)(7)+135+13+15+27+50+3

=70+(14)(7)+135+13+15+27+50+3

=70+98+135+13+15+27+50+3

=168+135+13+15+27+50+3

=303+13+15+27+50+3

=316+15+27+50+3

=331+27+50+3

=358+50+3

=408+3

=411

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