=232+418+182
=232+600
=832( )
改正:
=46+454+137+563
= 500+700
= 1200( )
421-125-75+179 67×86+56×86-23× 86
①[347-(36+47)]÷12
②64×125
③9.61-(2.61-1.65)
④400÷25+600÷15
⑤101×87
⑥8.19-4.1+12.91-5.9
①235-(456+304)÷4
②600÷[(160-76)÷7]
③95+560÷14×28
④640÷[8×(3.7+4.3)]
①26×15﹣200
②8×4×12.5×0.25
③×+
④12÷[()×]
①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)