=" 9×" 
÷9× = 1﹣ 
+ 
= = |  ÷  = | 8﹣  = | 6×  = |
 ÷  = |  ﹣ = |  × = |  = |
 ÷3= |  = | +  ×  = |  ×4×  = |
 ×0= | ÷  = |  ×75%= |  = |
=
÷ ﹣ = 
，现在胡夫金字塔大约高多少米？
﹣ 
﹣ 
﹣ 
﹣ 
．  ﹣ =________ |  +  =________ |  ÷2=________ | 8÷  =________ |
3.6×  =________ | 2.4÷ =________ |  ÷  =________ |  ×  =________ |
和3米的
同样长．（判断对错）．
是40×  =________ |  ×  =________ | 10×  =________ |
12×  =________ | ×  =________ | 36×  =________ |
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