5 학년 간단한 수학 문제 (내가 준 등호에 따라 작성) 감사합니다!

= 0.00 ...... (총 20 개 0 개) .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... kloc-0/0/0

=0.00… (총 20 개의 0) … 1

0.01+0.02+0.03+0.04+... 0.98+0.99 ......................................................................................................................................................................................................................................................

=(0.0 1+0.99)×99÷2

= 1×99÷2

=49.5

99.9 × 222+33.3 × 334 ................................................................... ...... ....... ...... ....... ......

=33.3×3×222+33.3×334

=33.3×(666+334)

=33.3× 1000

=33300