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。
$30×7=$ $105×4=$ $90×20=$ $5.2+2.8=$
$500×9=$ $400×8=$ $0×59=$ $6+2.7=$
$210×40=$ $180÷6=$ $70×9=$ $15.8-4.5=$
$105×6=$ $240÷8=$ $600×4=$ $9.5-3.1=$
$90÷3=$ $60÷2=$ $800×5=$ $31.6+2.4=$
$800÷4=$ $540÷9=$ $810÷9=$ $3-1.2=$
$420÷7=$ $15×60=$ $800÷8=$ $4.9+4.4=$
$770÷7=$ $606÷6=$ $80÷4=$ $8.2-5=$
$1-\frac{7}{20}=$ $\frac{5}{18}+\frac{7}{18}=$ $\frac{8}{11}-\frac{5}{11}=$ $\frac{4}{15}-\frac{3}{15}+\frac{1}{15}=$
$\frac{7}{8}+\frac{1}{8}=$ $\frac{8}{9}-\frac{4}{9}=$ $\frac{6}{13}+\frac{2}{13}=$ $1-\frac{2}{9}-\frac{4}{9}=$
结果统计:我夺了()面旗帜。
$30×7=$ $105×4=$ $90×20=$ $5.2+2.8=$
$500×9=$ $400×8=$ $0×59=$ $6+2.7=$
$210×40=$ $180÷6=$ $70×9=$ $15.8-4.5=$
$105×6=$ $240÷8=$ $600×4=$ $9.5-3.1=$
$90÷3=$ $60÷2=$ $800×5=$ $31.6+2.4=$
$800÷4=$ $540÷9=$ $810÷9=$ $3-1.2=$
$420÷7=$ $15×60=$ $800÷8=$ $4.9+4.4=$
$770÷7=$ $606÷6=$ $80÷4=$ $8.2-5=$
$1-\frac{7}{20}=$ $\frac{5}{18}+\frac{7}{18}=$ $\frac{8}{11}-\frac{5}{11}=$ $\frac{4}{15}-\frac{3}{15}+\frac{1}{15}=$
$\frac{7}{8}+\frac{1}{8}=$ $\frac{8}{9}-\frac{4}{9}=$ $\frac{6}{13}+\frac{2}{13}=$ $1-\frac{2}{9}-\frac{4}{9}=$
结果统计:我夺了()面旗帜。
答案
$30×7=210$
$105×4=420$
$90×20=1800$
$5.2+2.8=8$
$500×9=4500$
$400×8=3200$
$0×59=0$
$6+2.7=8.7$
$210×40=8400$
$180÷6=30$
$70×9=630$
$15.8-4.5=11.3$
$105×6=630$
$240÷8=30$
$600×4=2400$
$9.5-3.1=6.4$
$90÷3=30$
$60÷2=30$
$800×5=4000$
$31.6+2.4=34$
$800÷4=200$
$540÷9=60$
$810÷9=90$
$3-1.2=1.8$
$420÷7=60$
$15×60=900$
$800÷8=100$
$4.9+4.4=9.3$
$770÷7=110$
$606÷6=101$
$80÷4=20$
$8.2-5=3.2$
$1-\frac{7}{20}=\frac{13}{20}$
$\frac{5}{18}+\frac{7}{18}=\frac{2}{3}$
$\frac{8}{11}-\frac{5}{11}=\frac{3}{11}$
$\frac{4}{15}-\frac{3}{15}+\frac{1}{15}=\frac{2}{15}$
$\frac{7}{8}+\frac{1}{8}=1$
$\frac{8}{9}-\frac{4}{9}=\frac{4}{9}$
$\frac{6}{13}+\frac{2}{13}=\frac{8}{13}$
$1-\frac{2}{9}-\frac{4}{9}=\frac{1}{3}$
结果统计:我夺了(40)面旗帜。
$105×4=420$
$90×20=1800$
$5.2+2.8=8$
$500×9=4500$
$400×8=3200$
$0×59=0$
$6+2.7=8.7$
$210×40=8400$
$180÷6=30$
$70×9=630$
$15.8-4.5=11.3$
$105×6=630$
$240÷8=30$
$600×4=2400$
$9.5-3.1=6.4$
$90÷3=30$
$60÷2=30$
$800×5=4000$
$31.6+2.4=34$
$800÷4=200$
$540÷9=60$
$810÷9=90$
$3-1.2=1.8$
$420÷7=60$
$15×60=900$
$800÷8=100$
$4.9+4.4=9.3$
$770÷7=110$
$606÷6=101$
$80÷4=20$
$8.2-5=3.2$
$1-\frac{7}{20}=\frac{13}{20}$
$\frac{5}{18}+\frac{7}{18}=\frac{2}{3}$
$\frac{8}{11}-\frac{5}{11}=\frac{3}{11}$
$\frac{4}{15}-\frac{3}{15}+\frac{1}{15}=\frac{2}{15}$
$\frac{7}{8}+\frac{1}{8}=1$
$\frac{8}{9}-\frac{4}{9}=\frac{4}{9}$
$\frac{6}{13}+\frac{2}{13}=\frac{8}{13}$
$1-\frac{2}{9}-\frac{4}{9}=\frac{1}{3}$
结果统计:我夺了(40)面旗帜。
登录