820÷(2×2) 42×9÷6 (305-274)×13
2.1-2.01= 3.07+0.125= 0.35×0.4=
0.85×100= 1.25×4= 4-0.89=
0.2×0.5+1.3= 3.75-0.75-3=
15.7+3.58+4.3+5.42 8×14×125 25+25×39 1680÷[(121-109)×4]
0.86+0.4= 0.62-0.38= 1.6×100= 7.6÷10= 125×29×8=
7.55+0.35= 8-4.3= 10-0.06= 0÷2.89= 6.39-2.76-3.24=
1.2+2.4= 3.6+1.8= 2.4+1.6= 3.5+0.3=
4.2-3.8= 15.7-13= 9-4.9= 6.3-1.4=
5.71+3= 0.95-0.5= 4.82+11= 10.1×100=
15×20= 270÷9= 132+68= 125×2=
190160000000 ≈亿
465230000000 ≈亿
西红柿
每千克( )元
买( )千克
土 豆
黄 瓜