问题
解答题
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答案
×15=5 9
; 25 3
×2=3 5
; 6 5
×1 4
=4 5
; 1 5
×1 9
=3 7
; 1 21
×7 12
=3 4
;7 16
1×
=3 20
; 3 20
×2 5
=15 4
; 3 2
×34=8; 4 17
×8 21
=7 16
;1 6
×1 20
=2 3
;1 30
×5 6
=2 15
; 1 9
×15 17
=1; 17 15
×3 4
=1 5
;3 20
×6 11
=1 12
;1 22
×3 22
=11 13
;3 26
×24=28; 7 6
×4 7
=3 8
; 3 14
×30=26;28×13 15
=7 24
; 49 6
×5 6
=3 7
;5 14