Question

72+49×99+27

Answer 1

72+49×99+27
=49×99+99
=99(49+1)
=99x50
=(100-1)x50
=5000-50
=4950

Answer 2

72＋49×99＋27
＝（72＋27）＋49×100一49×1
＝99＋4900一49
＝（99一49）＋4900
＝50＋4900
＝4950

Answer 3

72+49×99+27
=99+49×99
=99×(1+49)
=99×50
=4950