math-crossword/addition-4x4/medium · 套题 9
8 problems
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1
9 × 9 __
=
2
8 × __ 64
=
3
4 - __ 3
=
4
2 - 0 __
=
5
7 × __ 56
=
6
12 + 10 __
=
7
15 + 2 __
=
8
9 + 9 __
=