Place Value/Rounding
What is the value of the ten-thousands digit?
1,756,908
50,000
1,856 + 3,789 =
5,645
10,000 - 7,985 =
2,015
First 8 multiples of 12:
12, 24, 36, 48, 60, 72, 84, 96
What is the rhyme for rounding?
5-9 Climb the vine (round up to the nearest...)
0-4 Slide to the floor (round down to the nearest...)
Write this number in words:
239,654
Two hundred and thirty nine thousand, six hundred and fifty four.
13,452 + 7,908 =
21,360
54,362 - 27,856 =
26,506
First 8 multiples of 9
9, 18, 27, 36, 45, 54, 63, 72
Numbers in a times table,
Counting in groups of that number
Write this number in digits:
One million, eight hundred and seventy six thousand, four hundred and thirty nine.
1,876,439
76,591 + 354,893 =
431,484
294,376 - 85,930 =
208,446
Find the factors of 36
1, 2, 3, 4, 6, 8, 12, 18, 36
Factors are...
Numbers that it can divide into without remainder
Round to the nearest 10 and 100:
736
740
700
243,722 + 134,761 =
378,483
521,003 - 245,771 =
275,232
Find the factors of 45
1, 3, 5, 9, 15, 45
What are Prime numbers?
Only have 2 factors - 1 and itself
Round to the nearest 10,000 and 100,000
52,732
50,000
100,000
1,567,321 + 256,789 =
1,824,110
1,567,832 - 45,897 =
1,521,935
Which of these numbers are prime?
1, 2, 5, 33, 45, 61
2, 5, 61
What is a composite number?
A number that has 3 or more factors