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    E:\Working\Focus_Learning\Math_Genius_1_(05-10-2023)\Open_Files\17_Answers\Answers
                   \ 11-Sep-2024  Bharat Arora   Proof-2                                    Reader’s Sign _______________________ Date __________

                                Chapter 4. Subtraction up to 20           4.  (a)  24   (b)  33   (c)  41   (d)  50
                                                                          6.  (a)  19, 37, 42, 28   (b)  29, 43, 12, 21     (c)  22, 33, 50, 7
                  Get Ready                                             Practice Time 5B
                       8 glasses of water
                  Practice Time 4A                                        3.  (a)  >   (b)  <   (c)  <   (d)  >   (e)  <   (f)  >
                                                                                    (h)  =
                                                                            (g)  =
                     1.  (b)  5   (c)  6   (d)  4   (e)  4   (f)  3
                     2.  (b)  5   (c)  3   (d)  4   (e)  1   (f)  2     Life Skills
                  Practice Time 4B                                          50
                     2.  9     3.  12   4.  11   5.  10                 Practice Time 5C
                     6.  8     7.  9                                      1.  (b) 7, 16, 27, 40    (c)  23, 26, 41, 49     (d)  14, 25, 36, 43
                  Life Skills                                               (e)  11, 27, 45, 49   (f)  19, 22, 35, 40
                     1.  12 bananas                                       2.  (b)  41, 28, 17, 8    (c)  47, 40, 36, 14     (d)  44, 37, 26, 15
                  Practice Time 4C                                          (e)  41, 36, 27, 23   (f)  43, 37, 29, 24
                     1.  7     2.  10   3.  7   4.  4                   Chapter Assessment
                     5.  8                                                1.  (b)    2.  (c)
                  Practice Time 4D                                        4.  34 = Thirty-four; 47 = Forty-seven; 45 = Forty-five; 26 = Twenty-six;
                     1.  (a)  2   (b)  5   (c)  1   (d)  3   (e)  4   (f)  3  31 = Thirty-one; 20 = Twenty; 30 = Thirty; 36 = Thirty-six;
                                                                            46 = Forty-six; 42 = Forty-two; 50 = Fifty; 39 = Thirty-nine
                       (g)  4   (h)  1   (i)  2   (j)  5
                     2.  (b)  9   (c)  8   (d)  6   (e)  5   (f)  4   (g)  3  5.  (a)  9, 14, 32       (b)  17, 38, 49  (c)  12, 37, 40
                       (h)  2   (i)  1   (j)  0                           6.  (a)  50, 46, 22     (b)  46, 35, 24  (c)  39, 32, 25
                  Maths Connect                                         Brain Sizzlers
                       3 steps                                            1.  49    2.  25
                  Practice Time 4E                                      Mental Maths
                     1.  (b)  2   (c)  4   (d)  7   (e)  0   (f)  1       1.  FORTY-FOUR   2.  ELEVEN   3.  TWENTY-TWO
                     2.  (b)  1   (c)  2   (d)  0   (e)  2   (f)  6       4.  TWENTY-FIVE   5.  FORTY-ONE   6.  FORTY-NINE
                     3.  (a)  1   (b)  2   (c)  4   (d) 1                 7.  THIRTY-SEVEN   8.  SIXTEEN   9.  TWENTY-SIX
                  Practice Time 4F                                        10.  FORTY-EIGHT
                     1.  10    2.  12   3.  11   4.  11   5.  12   6.  10             Chapter 6. Numbers up to 100
                     7.  14    8.  12
                  Practice Time 4G                                      Maths Fun (page 90)
                     1.  6     2.  0   3.  6   4.  0   5.  1   6.  2          F  I  F  S  I  X  T  W  T  H  T  N  E  H  E  T
                     7.  12    8.  16   9.  18                                I  S  I  N  I  N  E  T  E  N  W  I  I  T  I  W
                  Practice Time 4H
                     1.  5     2.  10   3.  12   4.  2   5.  12               F  E  F  T  E  N  R  T  S  I  E  N  G  Y  G  E
                  Practice Time 4I                                            T  V  L  V  H  O  P  S  X  N  N  E  N  T  H  H
                     1.  (f)    2.  (c)   3.  (d)   4.  (a)   5.  (b)   6.  (e)  Y  N  M  U  T  T  E  W  S  S  T  H  I  R  T  Y
                  Chapter Assessment                                         H  N  S  T  S  E  V  E  N  T  Y  R  N  H  Y  T
                     1.  (c)    2.  (b)                                      O   I  F  T  I  P  Q  S  T  A  B  C  E  I  F  H
                     3.  (a) 9 – 4 = 5; 9 – 5 = 4    (b)  6 – 2 = 4;  6 – 4 = 2
                       (c)  8 – 3 = 5; 8 – 5 = 3                             B  T  I  W  X  F  O  U  R  F  I  D  T  I  I  R
                     4.  (b)  13   (c)  10   (d) 9                            F  F  O  R  T  Y  V  E  S  I  X  H  Y  S  F  T
                     5.  (a)  12   (b)  12   (c)  2   (d)  11                 S  Y  T  O  Y  S  E  V  E  N  T  I  X  I  T  Y
                     6.  (b)  –   (c)  –   (d)  +   (e)  –   (f)  +
                     7.  (a)  2   (b)  11   8.  10   9.  8   10. 6      Practice Time 6A
                  Mental Maths                                            1.  (b)  54 = Fifty-four   (c)  57 = Fifty-seven   (d)  69 = Sixty-nine
                     1.  4     2.  17   3.  Minus   4.  6   5.  1           (e)  75 = Seventy-five  (f)  86 = Eighty-six
                  Brain Sizzlers                                          3. (a)  51  52  53  54  55  56  57   58  59   60
                     1.  15 bracelets       2.  4 biscuits                  (b)  61  62  63  64   65  66  67   68  69   70
                                                                            (c)  75  76  77  78   79  80  81   82  83   84
                                 Chapter 5. Numbers 21 to 50
                                                                          4.    (a)      (b)       (c)      (d)      (e)
                  Quick Check (page 76)
                     1.  9     2.  3   3.  44; only one                         100      90        80       70       60
                  Practice Time 5A                                              99       89        79       69       59
                     1.  (b)  47 = 4 tens and 7 ones   (c)  38 = 3 tens and 8 ones  98   88        78       68       58
                       (d)  21 = 2 tens and 1 one    (e) 24 = 2 tens and 4 ones  97      87        77       67       57
                       (f)  40 = 4 tens and 0 ones                              96       86        76       66       56
                     3.  Number names  Numbers  Number names  Numbers           95       85        75       65       55
                        Twenty-three     23    Twenty-six       26              94       84        74       64       54
                        Forty-two        42    Forty            40              93       83        73       63       53
                        Thirty           30    Forty-five       45              92       82        72       62       52
                        Twenty-nine      29    Thirty-two       32              91       81        71       61       51
                        Forty-seven      47    Forty-four       44      Think and Answer (page 92)
                        Thirty-six       36    Twenty-two       22          67; 66 → 67 ← 68

                  Mathematics-1                                                                                         177

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