解:672-36+64等于( 700 )
∵已知需求出672-36+64等于多少
∴672 - 36 + 64
= (700 - 28)- 36 + (100 - 36)
= 700 - 28 - 36 + 100 - 36
= (700 + 100)+ (-28 -36 - 36)
= 800 + (-64 - 36)
= 800 - 100
= 700
答:672-36+64等于700
672-36加64
=672+64-36
=736-36
=700
原式=672+64-36=736-36=700