5.5÷25.5×0.5 1.28÷21.28÷4 8.25÷58.25×5
7.42÷0.77.42 25.9÷0.925.9÷9 15.9÷15 15.9+15
0.03×10= 0.5×60= 0.27÷3= 1.25×0.8=
0÷4.8= 0.07+4.3= 0.49÷0.7= 100÷0.1=
①0.96×101
②3.69×9+3.69
③4.6×3.18×0.23
④2.5×3.2
△的数量是○的3倍,○有个。