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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 __________

                  Brain Sizzlers                                        Practice Time 10B
                     1.  (a) Rectangle has opposite sides equal but square has all sides equal.  1.  (a)  Lunch box   (b)  Duck
                       (b)  A cone has one circular base  and a cylinder has two circular bases.  Practice Time 10C
                     2.  (d)                                              1.  7         2.  1       3.  4       4.  5
                                  Chapter 9. Multiplication             Think and Answer (page 145)
                                                                          1.  (a)  less   (b)  more   (c)  less
                  Get Ready!
                                                                          2.   Bucket
                     1.  15        2.  3 + 3 + 3 + 3 = 12 parrots       Practice Time 10E
                  Practice Time 9A                                        2.  (a)  20   (b)  2      (c)  4
                     1.  6 + 6 + 6 = 18 water bottles; 3 groups of 6 = 18
                     2.  7 + 7 + 7 + 7 = 28 apples; 4 groups of 7 = 28  Mental Maths
                     3.  3 + 3 + 3 + 3 + 3 = 15 balls; 5 groups of 3 = 15   Salma
                  Practice Time 9B                                      Brain Sizzlers
                     1.  (b)  4 + 4 + 4 + 4 = 16; 4 times 4 = 16  (c)  5 + 5 + 5 = 15; 3 times 5 = 15  12 glasses
                                                                        Chapter Assessment
                     2.       Repeated   Number of times  Multiplication  Answer
                              addition     repeated     fact              1.  (b)    2.  (b)   3.  (b)   4.  (a) 6   (b)  5
                       (a) 2 + 2 + 2 + 2 + 2  5 times 2  5 × 2   10                        Chapter 11. Time
                       (b) 4 + 4 + 4 + 4 + 4  5 times 4  5 × 4   20     Quick Check (page 151)
                       (c) 3 + 3 + 3 + 3 + 3 + 3  6 times 3  6 × 3  18      The Sun appears in the daytime and the Moon in the nighttime.
                       (d) 5 + 5 + 5 + 5 + 5 + 5  6 times 5  6 × 5  30   Practice Time 11A
                                                                          1.  M         2.  E       3.  N       4.  A
                       (e) 6 + 6 + 6 + 6  4 times 6     4 × 6    24
                  Think and Answer (page 133)                           Practice Time 11B
                     1.  16 people   2.  24 people   3.  45 passengers    1.  (b)  8 o’clock; 8:00       (c)  10 o’clock; 10:00
                  Think and Answer (page 136)                               (d)  2 o’clock; 2:00
                                                                        Think and Answer (page 154)
                                                                            Yesterday was Sunday and tomorrow will be Tuesday.
                                                                        Practice Time 11C
                                                                          1.  (a)  Tuesday   (b)  Friday   (c)  Sunday   (d)  Thursday
                  Practice Time 9C                                          (e)  Tuesday
                     1.  3    2.  2   3.   6   4.  4   5.  10   6.  10    2.  (a)  7    (b)  First   (c) Thursday   (d)  Third
                     7.  2    8.  10   9.  2   10.  6   11.  5   12.  5     (e)  Thursday   (f)  Sunday   (g) Saturday, Monday
                  Maths Fun                                             Practice Time 11D
                       NEW DELHI                                          1.  (a)  January   (b) July   (c)  September   (d)  November
                                                                          2.
                  Mental Maths                                              (a)  March, April  (b)  March, June, July
                                                                            (c)  October, November, December
                     1.  12 wheels   2.  35 days   3.  6 groups   4.  70 pages  (d)  June, July, September, October
                     5.  16 dots                                        Think and Answer (page 156)
                  Chapter Assessment                                      1.  Hot and dry
                     1.  (a)       2.  (a)     3.  (b)                    2.  Hot sizzling food and lukewarm milk, soup, tea or coffee
                     4.  (a)  3 + 3 + 3 + 3 = 12     (b)  6 + 6 = 12      3.  umbrella
                     5.      Number of      Objects in  Total number of   Chapter Assessment
                              groups        each group     objects        1.  (c)       2.  (b)
                         (b)    3              9           3 × 9 = 27     4.  (b)  comes after Friday    (c)  comes after August
                                                                            (d)  comes between March and May  (e)  the last month of the year
                       (c)      2              8           2 × 8 = 16   Mental Maths
                  Brain Sizzlers                                          1.  January   2.  March   3.  September   4.  December
                     1.  18        2.  30      3.  40                   Brain Sizzlers
                     4.  2, as 2 + 2 = 2 × 2 = 4
                  Life Skills                                             1.  Twice; The hour hand completes two rounds on the dial in a day.
                                                                          2.
                                                                            There are 24 hours in a day.
                       20 flowers
                                                                                          Chapter 12. Money
                                  Chapter 10. Measurement
                                                                        Get Ready!
                  Get Ready!                                              1.  (a)  `60  (b)  `15    (c)  `20
                     1.  shorter   2.  bigger   3.  lighter   4.  more    2.  Ball, Car, Bat
                  Practice Time 10A                                     Practice Time 12A
                     2.  (a)  5    (b)  10     (c)  8      (d)  6         1.  (b)  `30  (c)  40 p  (d)  60 p   (e)  `75  (f)  90 p  (g)  `100
                       Paintbrush; Toothbrush                               (h)  `25
                     3.  (a)  5    (b)  3      (c)  4      (d)  2; Flute; Glass  2.  (a)  `10  (b)  `25  (c)  `50
                  Think and Answer (page 143)                             3.  (a)  `26  (b)  `43
                     1.  No        2.  It will depend upon their sizes.      4.  (a)  `17  (b)  `27

                  Mathematics-1                                                                                         179

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