Page 70 - TG_G1_CH6_CHRIS
P. 70

Match.
            10 more                20     30



                                0  10  20  30  40  50  60  70  80  90  100  110 120
           count back by            35
              tens                                                       Use the Vocabulary Review to assess
                                   17      7                              children understanding of the math

            regrouping                                                        vocabulary in the chapter.
                                  Start counting back at 97 and end at 47.
                                0  10  20  30  40  50  60  70  80  90  100  110 120
                                             97
            10 less
                                   T  O    T  O

                                        =
            count on by
              tens


          312









                                          Use the chapter test to assess children progress with
                                              the concepts and strategies in the chapter.






                                                                           D. Add or subtract.
                                                                           1  90 – 40 =        50        4  eight tens – 2 tens = 60
                    A. Write the missing numbers. Start at 44.
                                                                           2  30 + 56 =        86        5  84 + 7 = 91
                             53  1 less  52  1 more  53
                                                                           3   60          6   45
                                                                              − 30            −   6
                        10 more                  10 less
                                                                              30              39
                                1 less   1 more
                             43       44       43                          E. Subtract. Write the related addition fact.
                    B. Write the missing numbers.                          1  50 − 30 =  20  3  90 − 20 =  70
                     1
                         15            45            75
                                                                                                   +
                                                                                     =
                                                                                                       =
                                                                                +
                             25   35       55  65                          2  30    20    50     4  20    70    90
                                                                           F. Problem solving.
                     2
                         18                     68  78                     1  Betty has 24 crayons. Her mother gives
                             28   38  48   58                                her 6 more crayons. How many crayons
                                                                             does Betty have in all?
                    C. Add
                                                                                 24 + 6 = 30  crayons
                                              5
                     1  40 + 50 =        90     3  34 + 5 =   39             6 tens + 3 tens = 90
                                                                           2  Karen had 40 cents. She bought a
                     2  4 tens + eight = 48  4  70  6  67                    pencil for 20 cents. How much money
                                      + 20      +   1                        does she have now?
                                      90        68                                40 - 20 = 20  cents
                                                           313            314
                                                                                                                           461
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