100 - (40 + 36) : 4 = 81
1) 40 + 36 = 76
2) 76 : 4 = 19
3) 100 - 19 = 81
(100 - 40 + 36) : 4 = 24
1) 100 - 40 = 60
2) 60 + 36 = 96
3) 96 : 4 = 24
100 - (40 + 36 : 4) = 51
1) 36 : 4 = 9
2) 40 + 9 = 49
3) 100 - 49 = 51
900 : 9 - 6 × 10 = 40
1) 900 : 9 = 100
2) 6 × 10 = 60
3) 100 - 60 = 40
600 : 100 + 50 × 10 = 506
1) 600 : 100 = 6
2) 50 × 10 = 500
3) 6 + 500 = 506
70 × 5 + 3 × 100 = 650
1) 70 × 5 = 350
2) 3 × 100 = 300
3) 350 + 300 = 650
100 - (40 + 36) : 4 = 81
1) 40 + 36 = 76
2) 76 : 4 = 19
3) 100 - 19 = 81
(100 - 40 + 36) : 4 = 24
1) 100 - 40 = 60
2) 60 + 36 = 96
3) 96 : 4 = 24
100 - (40 + 36 : 4) = 51
1) 36 : 4 = 9
2) 40 + 9 = 49
3) 100 - 49 = 51
900 : 9 - 6 × 10 = 40
1) 900 : 9 = 100
2) 6 × 10 = 60
3) 100 - 60 = 40
600 : 100 + 50 × 10 = 506
1) 600 : 100 = 6
2) 50 × 10 = 500
3) 6 + 500 = 506
70 × 5 + 3 × 100 = 650
1) 70 × 5 = 350
2) 3 × 100 = 300
3) 350 + 300 = 650