★34×69= ★96×65= 80×45= 11×72=
验 验
算 算
10×70=
280×0=
50×40=
20×32=
50×20=
32×59≈
①42×24=
②12.6+27.8=
③306÷3=
④*572÷4=
①320÷5=
②476÷4=
③212÷3=
④738÷3=
⑤164÷8=
⑥227÷5=
⑦428÷4=
⑧750÷5=
⑨416÷7=
①27×45=
②16.7+23.8=
③26-3.9=
④817÷4=
⑤※421÷7=验算:
13-9=
16-9=
0.7﹣ = × = + =
15÷ = ( + )×6= 1.25× ×8=