Page 144 - SK Year 5 Mathematics DLP
P. 144

Years to months



                                                                          The solar system
                                                                          consists of eight
                                                                          planets, namely
                                                                          Mercury, Venus, Earth,
                                                                          Mars, Jupiter, Saturn,
                                                                          Uranus, and Neptune.


                                                     Saturn
                                 Sun




               Saturn takes about 29.5 years to make a complete orbit around the Sun.
               State the estimated duration in months.

               29.5 years =          months                                              Multiply 12 to
                                                                1  1                    convert years to
                                                               2 9.5                   months because
                Cara 1
                Method  1
                                                           ×      1 2 months         1 year has 12 months.
               29.5 years = (29.5 × 12) months               1  1
                             = 354 months                      5 9 0
                                                           + 2 9 5 0
                                                             3 5 4.0  months



                Cara 2
                Method 2
               29.5 years = 29 years + 0.5 year
                                                       1    6
                                  = (29 × 12) months + (  × 12) months
                                                      2
                                                       1
                                  = 348 months + 6 months

                                  = 354 months


                29.5 years =  354  months
                29.5 years is 354 months.



                          Convert 8.75 years to months.



             136
                             4.2.2 (iii) • Surf https://rb.gy/u7ytwu
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