解:25×401等于( 10025 )
∵已知需求出25×401等于多少
X × (Y + 1)= X × Y + X
∴25 × 401
= 25 × (400 + 1)
= 25 × 400 + 25 × 1
= 10000 + 25
= 10025
答: 25×401等于10025
25×401
=25×(400+1)
=25×400+25×1
=10000+25
=10025
25×401=25×(400+1)=25×400+25=10000+25=10025
解:
原式=25X401
=25(400+1)
=25X400+25
=10000+25
=10025
25×401
=25×400+25×1
=10000+25
=10025