(주산no.21)"고수편"100을 만드는 덧셈
Synopsis
덧셈 * 두수를 더해서 100을 만드는 덧셈 주산에서 덧셈할때는 큰수부터 더한다. 1. 68+75 주판에 68을 먼저 놓는다. 75중에 70을 60 ...
![(주산NO20.)[덧셈]"응용편"100을 만드는 덧셈](https://i.ytimg.com/vi/WYFTqGRg1Io/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCqn_Y31mSG8tgsH7537YawhILyWQ)
![(주산NO.28)"응용편"[뺄셈] 10의보수를 이용한 100에서의 받아내림 뺄셈](https://i.ytimg.com/vi/LZbxaYoX2KE/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLB8BY0BYFGBaVJCrCwV_6KsyXSIAQ)
![[하루 3분 주산] 14일 두자리 + 두자리(100이 넘는 수)](https://i.ytimg.com/vi/4dAqUKTB7yQ/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDR1xuI1Vx9Wxihftc1_RQJgMM5zQ)
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