①930÷30
②☆612÷18
③530÷86
④☆394÷45
70+630= 1200-280= 26×3= 810÷90=
1262-600= 920×0= 916-25-75= 563+79-163=
0÷387= 4800÷80= (32+168)×4= 618-25×8=
38×49≈ 198×6≈ 542÷59≈ 488÷71≈
127÷30=
910÷70=
*239÷26=
278÷38=
283÷34=
*744÷57=
0.8×5= 3.6+1.4= = =
= 0×75%= 4.8÷24= 90×30%=