综合套题十
9.7 - 4.9 = 810 - 90 = 1000 ÷ 50 =
90 ×27 = 4.2 ÷ 1000 = 50.1 × 100 =
5.96 × 1000 = 27 +586 = 43.2 + 17.9 =
60 ÷ 10000 = 5.4 - 2.92 = 16.3 + 15 =
2、简便计算
56 × 4 × 25




7000 ÷ 25 ÷ 4




999 × 461 + 461




4 × ( 25 + 100 )




153 + 661 + 247 + 623 + 239




9.76 - (2.76 + 3.89 )




3、四则运算与灵活运用
5×[(291-57)÷6+295]




929 + 77 × 4 - 255




5400 ÷ 18 ÷ 15 + 301




125 × 24 × 25




681 + 794 - 789




338 - ( 238 - 965 )




( 445 + 285 ) ÷ 5




804×793-74×804-804×19




8.57 + 8.95 - 6.9