Page 69 - SK Year 5 Mathematics DLP
P. 69

8  Estimate the following quantities.

                      a                                    b





                                                                   15 000 g




                         120 000 beads
                  9  Complete the number patterns below. State each pattern.

                       a  505 120, 505 124, 505 128,           ,
                       b  198 780,        , 198 580, 198 480,        ,

                       c  303 409, 403 409,           , 603 409,       , 803 409
                       d  869 007, 859 007,          ,      , 829 007,


                  10   a   Round off the following numbers to the nearest ten thousand
                          and hundred thousand.
                            i  417 831      ii   283 095      iii   643 742     iv   995 210

                       b   Give three numbers that become 800 000 when rounded off
                          to the nearest hundred thousand.

                  11  Solve these.

                       a  6 796 + 801 273 =                          b  109 + 5 027 + 493 089 =

                       c  49 + 505 + 482 014 + 9 918 =
                       d  80 713 + 4 160 + 392 042 + 896 + 27 =

                       e  791 008 – 39 580 =                         f  620 090 – 49 178 – 769 =
                       g  251 730 – 198 – 103 918 – 45 520 =


                  12  Calculate.
                       a  64 730 × 10 =               b  5 009 × 100 =             c  312 × 1 000 =

                       d  6 × 59 824 =                e  8 907 × 41 =
                       f  53 × 13 098 =               g  832 ×         = 832 000

                       h        × 100 = 168 000        i       = 3 906 × 40


                          1.3.1, 1.4.1, 1.4.2,
                          1.5.1, 1.5.2, 1.6.1,                                                         61
                             1.6.2, 1.6.3
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