12＋0.6= 4.3－1.9= 10－0.8= 5.2-4.5=
5.5+2.7= 8.2-4.3= 4.6+5.4= 3.7+6.6=
54×43＝ 45×38＝ 270÷5＝ 336÷8＝
508÷4＝ 26×29＝ 25×25＝ 965÷5＝
