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50×90= 3.2-0.8= 54+36= 320÷4=
2.3-0.4= 12×60= 36×20= 0.8+3.6=
45×20= 25+37= 4.9-0.7= 120×4=
92-25= 18×40= 56-25= 47+39=
- = - = + = + = - =
①4.6+3.9=
②2.4-1.6=
③0.7+0.9=
④10.8+5.9=
⑤2.8+7.5=
⑥3.2-2.5=
⑦14.5+5.6=
⑧12.5-5.3=
⑨8.7+9.5=
⑩1.2-0.3=
⑪19.2-8.7=
⑫6.5-3.4=
0.8+0.7□ 1.2-0.9□ 4.3-3.6□ 0.6+0.9□ 1.2+0.3□
21-1.6□ 3.4+0.9□ 2.5-1.3□ 3.6+0.1□ 1.4-0.8□
0.8-0.3□ 1.6-0.5□ 9.2-8.4□ 0.5+0.4□ 1.6+0.5□
2.3+3.61.8+3.9 2.5-0.80.6+1.8
3.4+2.51.9+6.7 1.3+0.52.5-0.7
3.6-1.22.5-0.1 0.8+1.55.6-4.5
①
②
③
④
⑤
小兔子只能沿着分子是3的路走,该怎么走呢?
- = + = - = - =
- = + = + = - =
+ = - = + = - =
- =( ) + =( ) + =( )
- =( 4) + =( ) - =( 3)
进入组卷