201乘以24怎么写简便运算 682乘七加七加317乘以七用简便方法算,

682乘七加七加317乘以七用简便方法算,  

682乘七加七加317乘以七用简便方法算,

682×7+7+317×7
=7×(682+1+317)
=7×1000
=7000

0.98乘以七点二用简便方法计算

0.98x7.2
=（1-0.02）x7.2
=1x7.2-0.02x7.2
=7.2-0.144
=7.056
谢谢，请采纳

5600×49乘以七的简便方法

5600x49x7
=5600x(50-1)x7
=(28000-5600）x7
=22400x7
=156800

五个八乘以七,加上五一乘以44,用简便方法咋算?

88888x7+111111x44
11111x8x7+11111x44
11111x（56+44）
1111100

0.46乘以七零+8点3×46用简便方法计算

0.46x70+8.3x46
=0.46x70+830x0.46
=0.46x(70+830)
=0.46x900
=0.46x(1000-100)
=0.46x1000-0.46x100
=460-46
=414

328乘以七加472x七的简便计算

328×7+472×7

=(328+472)×7

=800×7

=5600。

256乘以七，减去56乘以七的简便运算怎么算

256 * 7 - 56 * 7
= (256 - 56) * 7
= 200 * 7
= 1400

四个九乘以七加上四个一乘以三十七用简便方法怎么计算

原式
=9999x7+1111x37
=1111x9x7+1111x37
=1111x63+1111x37
=1111x100
=111100

980除以7+23乘以七的简便方法

解：原式=980÷7+23x7
=140+161
=301
分析：直接运算最简便。