同学们,这里有40道题目,每做对1道题可夺得一面旗,比一比5分钟的时间里,谁夺得的旗帜最多。
$40×6=$ $600×8=$ $130×10=$ $108×9=$
$80÷2=$ $900÷9=$ $350÷5=$ $640÷8=$
$50×8=$ $240×20=$ $202×3=$ $300×5=$
$140÷7=$ $180÷3=$ $80÷4=$ $720÷9=$
$11×90=$ $720÷8=$ $60×50=$ $0×67=$
$80×8=$ $400×5=$ $900×6=$ $700÷7=$
$540÷6=$ $60÷2=$ $600×5=$ $111×40=$
$7.4+1.6=$ $5+3.6=$ $16.7-3.2=$ $8.3-6.3=$
$24.4+3.5=$ $2-1.5=$ $0.4+6.6=$ $7.4-4=$
$\frac{1}{3}+\frac{1}{3}=$ $\frac{5}{8}-\frac{1}{8}=$ $1-\frac{11}{13}-\frac{2}{13}=$ $1-\frac{3}{10}-\frac{7}{10}=$
结果统计:我夺了()面旗帜。

$40×6=240$
$600×8=4800$
$130×10=1300$
$108×9=972$
$80÷2=40$
$900÷9=100$
$350÷5=70$
$640÷8=80$
$50×8=400$
$240×20=4800$
$202×3=606$
$300×5=1500$
$140÷7=20$
$180÷3=60$
$80÷4=20$
$720÷9=80$
$11×90=990$
$720÷8=90$
$60×50=3000$
$0×67=0$
$80×8=640$
$400×5=2000$
$900×6=5400$
$700÷7=100$
$540÷6=90$
$60÷2=30$
$600×5=3000$
$111×40=4440$
$7.4+1.6=9$
$5+3.6=8.6$
$16.7-3.2=13.5$
$8.3-6.3=2$
$24.4+3.5=27.9$
$2-1.5=0.5$
$0.4+6.6=7$
$7.4-4=3.4$
$\frac{1}{3}+\frac{1}{3}=\frac{2}{3}$
$\frac{5}{8}-\frac{1}{8}=\frac{4}{8}$
$1-\frac{11}{13}-\frac{2}{13}=0$
$1-\frac{3}{10}-\frac{7}{10}=0$
结果统计:我夺了( 40 )面旗帜。