87×19=(_____×19)+(_____×19)
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6
87×19=(80×19)+(7×19)
86&1
85&2
84&3
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.1&86
other answers also wright
angel1156:
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87×19= (__×19) (__×19)
⇒ 87 x 19 = ( 43)x 19 (44)x 19
⇒ 1653 = 817 + 836
⇒ 1653 = 1653
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