一、口算。
$35 + 27 =$
$7×7 =$
$17÷2 =$
$8×8 =$
$62 - 27 =$
$23÷3 =$
$44 + 15 =$
$3×5 =$
$32÷6 =$
$6×4 =$
$71 - 43 =$
$54÷7 =$
$63 - 34 =$
$7×8 =$
$18÷8 =$
$4×8 =$
$53 + 28 =$
$27÷9 =$
$74 - 49 =$
$6×9 =$
$34÷4 =$
$6×2 =$
$80 - 57 =$
$33÷5 =$
$65 - 36 =$
$2×7 =$
$72÷9 =$
$8×6 =$
$36 + 45 =$
$51÷8 =$
$35 + 27 =$
$7×7 =$
$17÷2 =$
$8×8 =$
$62 - 27 =$
$23÷3 =$
$44 + 15 =$
$3×5 =$
$32÷6 =$
$6×4 =$
$71 - 43 =$
$54÷7 =$
$63 - 34 =$
$7×8 =$
$18÷8 =$
$4×8 =$
$53 + 28 =$
$27÷9 =$
$74 - 49 =$
$6×9 =$
$34÷4 =$
$6×2 =$
$80 - 57 =$
$33÷5 =$
$65 - 36 =$
$2×7 =$
$72÷9 =$
$8×6 =$
$36 + 45 =$
$51÷8 =$
答案
一、62 49 8……1
64 35 7……2
59 15 5……2
24 28 7……5
29 56 2……2
32 81 3
25 54 8……2
12 23 6……3
29 14 8
48 81 6……3
64 35 7……2
59 15 5……2
24 28 7……5
29 56 2……2
32 81 3
25 54 8……2
12 23 6……3
29 14 8
48 81 6……3
二、()里最大能填几?
$8×( ) < 50$
$33 > ( )×6$
$( )×9 < 63$
$( )×5 < 32$
$36 > ( )×9$
$7×( ) < 49$
$3×( ) < 26$
$20 > 8×( )$
$( )×4 < 29$
$5×( ) < 41$
$23 > ( )×7$
$( )×6 < 35$
$7×( ) < 21$
$56 > 8×( )$
$43 > ( )×9$
$8×( ) < 50$
$33 > ( )×6$
$( )×9 < 63$
$( )×5 < 32$
$36 > ( )×9$
$7×( ) < 49$
$3×( ) < 26$
$20 > 8×( )$
$( )×4 < 29$
$5×( ) < 41$
$23 > ( )×7$
$( )×6 < 35$
$7×( ) < 21$
$56 > 8×( )$
$43 > ( )×9$
答案
二、6 5 6
6 3 6
8 2 7
8 3 5
2 6 4
6 3 6
8 2 7
8 3 5
2 6 4
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