Câu hỏi của Hưng Nguyễn

Question

Tính nhanh :

a) 3416 +1025 + 6584 =..................................................................................................................

b) 15 x 2 + 15 x 3 + 15 x 5 =...........................................................................................................

ILoveMath · Accepted Answer

$a,3416+1025+6584\
=\left(3416+6584\right)+1025\
=10000+1025\
=11025\
b,15\times2+15\times3+15\times5\
=15\times\left(2+3+5\right)\
=15\times10\
=150$Câu trả lời: $a,3416+1025+6584\
=\left(3416+6584\right)+1025\
=10000+1025\
=11025\
b,15\times2+15\times3+15\times5\
=15\times\left(2+3+5\right)\
=15\times10\
=150$

Thanh Trúc · Answer

a,3416+1025+6584=(3416+6584)+1025=10000+1025=11025b,15×2+15×3+15×5=15×(2+3+5)=15×10=150Câu trả lời: a,3416+1025+6584=(3416+6584)+1025=10000+1025=11025b,15×2+15×3+15×5=15×(2+3+5)=15×10=150