29+37+2129+21+37 313+82+48313+(82+48)
355-89-19355-(89-19) 96-27-2396-(27+23)
1.04×1.781.04 0.27×9.92.7×0.99 4.39×0.984.39
29×20=
120×60=
104×9=
924×0=
9×700=
468÷9=
960÷16=
4200÷14=