2222 × 3334 + 3333 × 4444 (clever calculation)

2222×3334＋3333×4444
=2222×3334+2222×6666
=2222×（3334+6666）
=22220000

(1) 18 × 24 × 37 (2) 364-362 + 360-358 + +60-58 （3）3333×4444+6×5555×2222 （4）

(1)18×24×37 =6*24*111=9*16*111=16*999=16*(1000-1)=16000-16=15984
(2)2*[(364-60)/4+1]=154
(3)3333*4444+5*3333*4444=8*9*1111*1111=8888*(10000-1)=88871112

How to calculate 2222 × 3334 + 3333 × 4444

=2222×（3333+1）+3333×（2222+2222）
=2222×3333+2222×1+2222×3333+2222×3333
=2222×（3333+1+3333+3333）
=2222×10000
=22220000

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