$71 - 4 = $
$20 + 30 + 40 = $
$56 - 7 - 10 = $
$72 - 7 - 30 = $
67
$52 - 6 = $46
$47 - 8 = $39
$20 + 30 + 40 = $
90
$100 - 60 - 40 = $0
$20 + 30 + 8 = $58
$56 - 7 - 10 = $
39
$49 + 7 + 20 = $76
$42 - 6 + 30 = $66
$72 - 7 - 30 = $
35
$9 + 33 - 10 = $32
$36 + 7 + 50 = $93
答案
67 46 39 90 0 58 39 76 66 35 32 93
连一连。

答案
1.
______ ______ ______
2.
______ ______ ______
3.$(3,28)(6,29)(9,30)(□,□)(□,□)$
4.
______ ______
5.
______ ______
6.好 习 惯 好 习 惯 好 习 ______ ______
2.
3.$(3,28)(6,29)(9,30)(□,□)(□,□)$
4.
5.
6.好 习 惯 好 习 惯 好 习 ______ ______
答案
1.
2.
3.12 31 15 32
4.
5.
6.惯 好
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