题目内容
| 口算我最棒! 3×
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(
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| 16×
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①3×
×
=
; ②
×
=
; ③
×
×4=
;
④(
+
)×42=13; ⑤
×
=
;⑥
×9+
=4;
⑦
×5-
=3; ⑧(
+
)×6=5; ⑨16×
×6=32.
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④(
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⑦
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