Question

递等式计算：

递等式计算：
578-25-75 367-56+44 408-33-167

12×35－6×35 4×29＋6×29 16×9+3×18

Answer 1

递等式计算怎么算！

Answer 2

578-25-75
=578-（25+75）
=578-100
=478

367-56+44
=311+44
=355

408-33-167
=408-（33+167）
=408-200
=208

12×35－6×35
=35×(12-6)
=35×6
=210

4×29＋6×29
=29×（4+6）
=29×10
=290

16×9+3×18
=32×3+3×18
=3×（32+18）
=3×50
=150

Answer 3

578-25-75
=553-75
=478
367-56+44
=311+44
=355

408-33-167
=375-167
=208

12×35－6×35
=420-210
=210
4×29＋6×29
=116+174
=290
16×9+3×18
=144+54
=198

Answer 4

578-25-75=578-(25+75)=578-100=478
367-56+44=367-(56-44)=367-12=355
408-33-167=408-(33+167)=408-200=208
12×35－6×35=(12-6)*35=210
4×29＋6×29=(4+6)*29=290
16×9+3×18=16*9+3*2*9=(16+3*2)*9=198

Answer 5

578-25-75=578-(25+75)=578-100=478
367-56+44=311+44=355
408-33-167 =408-(33+167)=408-200=208
12×35－6×35=(12-6)×35=6×35=210
4×29＋6×29 =(4+6)×29=10×29=290
16×9+3×18=16×9+6×9=(16+6)×9=22×9=198