( )
①8×7
②5×6
③4×9
④3×8
100﹣83﹣6=
98﹣54+27=
17+22+34=
×9<35 7×<37 ×6<40 ×5<41
提问:
1-0.92= - = ×3.2= ÷ ×5=
3.5+4.28= × = ÷ = 99×0.9+0.9=