49210 : 70; 980 * 400; 558720 : 9 * 5 − 6140 : 20.

4 классМатематика

49210 : 70;
980 * 400;
558720 : 9 * 56140 : 20.

StaticConfig

49210 : 70; 980 * 400; 558720 : 9 * 5 − 6140 : 20.

Решение

49210 : 70 = 703
$\snippet{name: long_division, x: 49210, y: 70}$
 
980 * 400 = 392000
$\snippet{name: column_multiplication, x: 98, y: 4}$
 
558720 : 9 * 56140 : 20 = 62080 * 56140 : 20 = 310400307 = 310093
1) $\snippet{name: long_division, x: 558720, y: 9}$;
2) $\snippet{name: column_multiplication, x: 62080, y: 5}$;
3) $\snippet{name: long_division, x: 6140, y: 20}$;
4) $\snippet{name: op_column, sign: '-', x: '310400', y: '307', z: '310093'}$.