6,13,32,69,()A.121B.133C.125D.130
32+60=5+49=69[88%]
32+60=5+49=69-45=7×7=56÷8=24÷6=56+13=25+30=78-65=96-82=100-80=470+30=54+46=41-14=5×8=6×7=880-400=350+500=100-60=150+70=
能简便的用简便方法计算。(1)9.27[78%]
能简便的用简便方法计算。(1)9.27-4.69+1.54(2)15.07-(8.34+2.69)(3)25.94+36.87+13.13+24.06(4)69.24-21.57-17.43(5)77.2-(32.46-18.8)(6)66.86-(8.66-1.34)
13, 39, 2,6,23,69,15,( )[74%]
13, 39, 2,6,23,69,15,( )A.9 B.79 C.45 D.33
直接写得数.13×6=150×3=27×4=60×40=450÷90=300÷6=96÷6=108÷4=69×..[73%]
直接写得数.13×6=150×3=27×4=60×40=450÷90=300÷6=96÷6=108÷4=69×72≈897×49≈321×19≈198×63≈
84×[10.8÷(48.6+5.4)[73%]
....3÷1562014×(3.4×69+3.5)3.5×69-3.41-3+5-7+9-11+13-…-39+41729×38+629×712+329×79121+2022121+50505212121+1313131321212121(1-32×4)×(1-33×5)×(1-34×6)×…×(1-37×9)
直接写出下面各题的得数.30×4=312×2≈32÷7=24÷6=37+47=69[73%]
直接写出下面各题的得数. 30×4=312×2≈32÷7=24÷6=37+47=69-49=1-14=1000×5=120×0=52÷7=
2,6,13,39,15,45,23,()A.46B.66C.68D.69[73%]
2,6,13,39,15,45,23,()A.46B.66C.68D.69
2,6,13,39,15,45,23,()A.46B.66C.68D.69[73%]
2,6,13,39,15,45,23,()A.46B.66C.68D.69
69里有______个3,13个6是______.[72%]
69里有______个3,13个6是______.