①10.2-5.38=
②17.63+2.47=
③15.28-7.64=
④6.92+7.88=
⑤20.15-15.4=
⑥21+7.9=
4×6÷3=
56÷8×4=
25×2-30=
45+(35-18)=
56-8×4=
(16-7)×0=
36-0÷23=
12÷3+21÷3=
45×4-20=
72÷4+32=
0.03+0.52= 3-0.3= 2.5×0.4= 0.4×0.7=
268×45 =
59×705 =
470×68 =
①11.6+2.87=
②645-1.09=
③3.2×5.4=
④7.05×4.6=