Page 3 - Syok Praktis PBD (2023) Mathematics TH5
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             Practice                                                Theme 1 Numbers and Operations

                   1              Whole Numbers and Operations




                                                                               Textbook	pages:	1	–	64
              SYOK        Study

            	 1.	 Each	digit	has	its	place	value	and	digit	value.  	5.	 A	prime	number	is	a	number	that:
                Example:	643	028                              •	  greater	than	1.
                                                              •	  can	only	be	divided	by	1	and	itself.
                  Digit     Place	value     Digit	value
                   8           ones            8          	 6.	 There	are	25	prime	numbers	within	100.
                   2           tens            20               1  2   3  4   5   6  7   8   9  10
                   0         hundreds          0               11  12  13  14  15  16  17  18  19  20
                   3        thousands         3	000            21  22 23 24 25 26 27 28 29 30
                   4       ten	thousands     40	000            31  32 33 34 35 36 37 38 39 40
                   6     hundred	thousands  600	000
                                                               41  42 43 44 45 46 47 48 49 50
            	 2.	 Whole	numbers	can	be	written	in	numbers	and	  51  52 53 54 55 56 57 58 59 60
                words.	Numbers	are	said	from	left	to	right.
                              thousand                         61  62 63 64 65 66 67 68 69 70
                (a)	 Numerals	→	643	028                       71  72 73 74 75 76 77 78 79 80
                (b)	 Words	 →	 Six	 hundred	 forty-three	      81  82 83 84 85 86 87 88 89 90
                    thousand	and	twenty-eight
                                                               91  92 93 94 95 96 97 98 99      100
            	 3.	 Whole	numbers	can	be	partitioned	based	on
                its	place	values	and	digit	values.        	 7.	 2	 is	 the	 only	 even	 number	 that	 is	 a	 prime
            	  	 Example:	643	028                             number.
                         6	 hundred	 thousands	 +	 4	 ten
                  Place	  thousands	+	3	thousands	+	      	 8.	 An	estimate	for	a	quantity	of	an	object	can
                  value                                       be	 done	 based	 on	 a	 given	 reference	 set.
                         0	hundreds	+	2	tens	+	8	ones
                                                              Example,	container	P	is	a	reference	set.
                  Digit	  600	000	+	40	000	+	3	000	+
                  value  20	+	8                                        598 beads
            	 4.	 The	value	of	a	number	can	be	compared	by
                using	a	place	value	chart.
            	  	 Example	1:
                 HTh    TTh    Th    H      T     O
                         4     3     0     2      8                       P            Q
                   6     4     3     0     2      8           •	  The	quantity	of	beads	in	container	Q	is
            	  	 →	a	number	with	more	digits	is	greater	than	a	   approximately	 half	 of	 the	 quantity	 of
                number	with	less	digits.	So,	643	028	(6	digits)	  beads	in	container	P.
                is	greater	than	43	028	(5	digits).            •	  Container	 Q	 has	 approximately	 300
            	  	 Example	2:                                       beads.
                  643	028
                             7	000		3	000
            	  	  647	028
            	  	 Therefore,	647	028	is	greater	than	643	028.

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   01 SYOK! Praktis PBD Math Year5.indd   1                                                      13/10/2022   1:33 PM
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