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Теориясы: Үш таңбалы сандарды қосу

Тапсырма

Қосындысын табу: : 

\(\displaystyle +\)\(\displaystyle 1\)\(\displaystyle 1\)\(\displaystyle 3\)
\(\displaystyle 1\)\(\displaystyle 3\)\(\displaystyle 5\)
 

 

Шешім

1. Бірліктерді қосамыз \(\displaystyle 3+5=8.\)

\(\displaystyle +\)\(\displaystyle 1\)\(\displaystyle 1\)\(\displaystyle \color{red}{3}\)
\(\displaystyle 1\)\(\displaystyle 3\)\(\displaystyle \color{red}{5}\)
 \(\displaystyle ?\)\(\displaystyle ?\)\(\displaystyle \color{red}{\bf8}\)

 

2. Ондықтарды қосамыз: \(\displaystyle 1+3=4.\)

\(\displaystyle +\)\(\displaystyle 1\)\(\displaystyle \color{red}{1}\)\(\displaystyle 3\)
\(\displaystyle 1\)\(\displaystyle \color{red}{3}\)\(\displaystyle 5\)
 \(\displaystyle ?\)\(\displaystyle \color{red}{\bf4}\)\(\displaystyle 8\)

 

3. Жүздіктерді қосамыз: \(\displaystyle 1+1=2.\)

\(\displaystyle +\)\(\displaystyle \color{red}{1}\)\(\displaystyle 1\)\(\displaystyle 3\)
\(\displaystyle \color{red}{1}\)\(\displaystyle 3\)\(\displaystyle 5\)
 \(\displaystyle \color{red}{\bf2}\)\(\displaystyle 4\)\(\displaystyle 8\)

 

Жауабы: \(\displaystyle 113+135=248.\)