0.6+7.91+3.4+0.09 ×3+×8-
201﹣65=
50×101=
0.04+=
10﹣4.6=
0.91÷0.7=
0.43=
×=
0.15:30%=
5-=
12×(-)=
213+199= 52-0.8= 12.5××0.08= 101×45=
(只)
口诀:
(元)
用加法算:( )+( )+( )+( )+( )+( )=( )
也可以这样算:( )×( )+( )=( )
还可以这样算:( )×( )-( )=( )
101×25= ×0.5= ×= 5+= 2.5× =
3.2÷8= 1.25- = 5× ÷5÷ = 1.25× ×0.8=