# RS Aggarwal Vikash Aggarwal Class 1 Activity Book Composite Mathematics Activity Sheet 36 To Sheet 40 Solution

## Activity Sheet – 36

#### Subtract by reverse counting as shown:

(1) 50 – 5 = 49, 48, 47, 46, 45

(2) 21 – 3 = 20, 19, 18

(3) 63 – 7 = 62, 61, 60, 59, 58, 57, 56, 55, 54

(4) 42 – 4 = 41, 40, 39, 38

(5) 34 – 6 = 33, 32, 31, 30, 29, 28

(6) 71 – 5 = 70, 69, 68, 67, 66

(7) 25 – 8 = 24, 23, 22, 21, 20, 19, 18, 17

(8) 86 – 7 = 85, 84, 83, 82, 81, 80, 79

(9) 16 – 8 = 15, 14, 13, 12, 11, 10, 9, 8

(10) 92 – 6 = 91, 90, 89, 88, 87, 86

(11) 77 – 8 = 76, 75, 74, 73, 72, 71, 70, 69

(12) 80 – 7 = 79, 78, 77, 76, 75, 74, 73

(13) 40 – 9 = 39, 38, 37, 36, 35, 34, 33, 32, 31

(14) 41 – 4 = 40, 39, 38, 37

(15) 84 – 8 = 83, 82, 81, 80, 79, 78, 77, 76

(16) 53 – 5 = 52, 51, 50, 49, 48

(17) 94 – 5 = 93, 92, 91, 90, 89

(18) 75 – 6 = 74, 73, 72, 71, 70, 69

(19) 96 – 9 = 95, 94, 93, 92, 91, 90, 89, 88, 87

## Activity Sheet – 37

(1) One more than 79 is = (79 + 1) = 80

(2) Two more than 69 is = (69 + 2) = 71

(3) Two more than 98 is = (98 + 2) = 100

(4) Three more than 52 is = (52 + 3) = 55

(5) Three more than 87 is = (87 + 3) = 90

(6) Five more than 30 is = (30 + 5) = 35

(7) Five more than 65 is = (65 + 5) = 70

(8) Five more than 61 is = (61 + 5) = 66

(9) Five more than 48 is = (48 + 5) = 53

(10) Ten more than 10 is = (10 + 10) = 20

(11) Ten more than 50 is = (50 + 10) = 60

(12) Ten more than 45 is = (45 + 10) = 55

(13) Ten more than 75 is = (75 + 10) = 85

(14) Ten more than 43 is = (43 + 10) = 53

(14) Seven more than 44 is = (44 + 7) = 51

(15) Nine more than 53 is = (53 + 9) = 62

(16) Eight more than 32 is = (32 + 8) = 40

(17) Eight more than 61 is = (61 + 8) = 69

(18) Six more than 36 is = (36 + 6) = 42

(19) Six more than 54 is = (54 + 6) = 60

(20) Seven more than 13 is = (13 + 7) = 20

(21) Seven more than 75 is = (75 + 7) = 82

(22) Six more than 25 is = (25 + 6) = 31

(23) Eight more than 19 is = (19 + 8) = 27

(24) Five more than 49 is = (49 + 5) = 54

(25) Seven more than 89 is = (89 + 7) = 96

(26) Six more than 69 is = (69 + 6) = 75

(27) Eight more than 33 is = (33 + 8) = 41

## Activity Sheet – 38

(1) One less than 100 is = (100 – 1) = 99

(2) One less than 40 is = (40 – 1) = 39

(3) Two less than 61 is = (61 – 2) = 59

(4) Two less than 97 is = (97 – 2) = 95

(5) Three less than 52 is = (52 – 3) = 49

(6) Three less than 25 is = (25 – 3) = 22

(7) Three less than 80 is = (80 – 3) = 77

(8) Five less than 30 is = (30 – 5) = 25

(9) Five less than 75 is = (75 – 5) = 70

(10) Five less than 77 is = (77 – 5) = 72

(11) Five less than 99 is = (99 – 5) = 94

(12) Ten less than 90 is = (90 – 10) = 80

(13) Ten less than 15 is = (15 – 10) = 5

(14) Ten less than 63 is = (63 – 10) = 53

(15) Six less than 60 is = (60 – 6) = 54

(16) Eight less than 42 is = (42 – 8) = 34

(17) Six less than 84 is = (84 – 6) = 78

(18) Seven less than 50 is = (50 – 7) = 43

(19) Seven less than 33 is = (33 – 7) = 26

(20) Nine less than 55 is = (55 – 9) = 46

(21) Five less than 74 is = (74 – 5) = 69

(22) Six less than 41 is = (41 – 6) = 35

(23) Seven less than 22 is = (22 – 7) = 15

(24) Eight less than 65 is = (65 – 8) = 57

(25) Eight less than 71 is = (71 – 8) = 63

(26) Seven less than 89 is = (89 – 7) = 82

(27) Four less than 70 is = (70 – 4) = 66

(28) Six less than 53 is = (53 – 6) = 47