①0.25×1.56×4
②0.74×99+0.74
③7.5÷1.5×1.3
④2.74÷0.125÷8
⑤12.5×7.2
⑥27.3÷[(7.4-6.8)×1.3]
①10.5÷32≈(得数保留一位小数)
②53.38÷15.7=
③40.91÷51≈(得数保留两位小数)
④0.84÷1.5=
5.3÷0.1= 0.4×2.5= 6.2×3+1.5= 1.4×3÷1.4×3=
0.52= 5a×2a= 4.8x+0.8x= 12.1x÷11=
0.7﹣ = × = + =
15÷ = ( + )×6= 1.25× ×8=