Complete each number line. Use it to find the sum 1. 42+7= 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 202. 6+59=1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 203. 36+8=1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Find the sum using the numbers line.1. 25+2= 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 2. 54+8= 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 3. 69+9= 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80.
Answer (1)
Solution:42 + 7 – Starting from 42 on the number line, count seven steps forward: 43, 44, 45, 46, 47, 48, 49. Sum: 496 + 59 – Starting from 6, count 59 steps forward: 65. Sum: 6536 + 8 – Starting from 36, count 8 steps forward: 44. Sum: 44Second set:25 + 2 – Starting from 25, add 2: 27. Sum: 2754 + 8 – Starting from 54, add 8: 62. Sum: 6269 + 9 – Starting from 69, add 9: 78. Sum: 78
