①28×36=
②4.2-2.5=
③※423÷4=
④706÷2=
⑤45×44=
⑥※2.6+5.7=
①18.3+14.9=
②10.3-4.6=
③624÷6=验算:
④15×32=
⑤47×29=
⑥283÷7=验算:
①※704÷3=
②28×33=
③6.8+2.4=
④84×32=
⑤580÷5=
⑥960÷8=