Rounding
Representing Whole Numbers
Subtraction
Addition
Other
100
Round 5784 to the nearest 10's place
5780
100
What is 2845 in base ten blocks?
2 cubes, 8 flats, 4 rods and 5 units
100
9841-7493=
2348
100
3489+9084=
12,573
100
Put the following numbers in order from greatest to least. 89, 9327, 23, 9328, 145
9328, 9327, 145, 89, 23
200
Round 7598 to the nearest thousand
8000
200
What is one thousand, five hundred, forty-six in standard form?
1546
200
8032-7639=
393
200
7894+6345=
14,239
200
which is greater: 9834 or 9845
9845
300
9473 rounded to the nearest thousand
9000
300
What is 7845 in expanded form?
7000+800+40+5
300
400-348=
52
300
590+ 972=
1562
300
What is 894+984=
1878
400
Round 4739 to the nearest hundred
4700
400
8457 in words
Eight thousand, four hundred, fifty-seven
400
Alberta became a province in 1905. It's 2013 today. How old is Alberta?
108
400
Tanjot has done 3489 questions for homework tonight. She has 7892 questions left. How many questions did she have altogether?
11,381
400
order the following from greatest to least, and then least to greatest: 9856, 9985, 8457, 9853
9985, 9856, 9853, 8457 8457, 9853, 9856, 9985
500
How do you know if you should round up or down?
Round down when the number next door is lower than 5, round up if the number is 5 or higher.
500
6831 in base ten blocks
6 cubes, 8 flats, 3 rods and 1 unit
500
Burhan ate 8945 apples. He started with 9834 apples. How many does he have left?
889
500
Sydney did 8729 questions for homework. Nasir did 3871. They each have 9732 questions left. How many questions will they do together?
22,332
500
What does estimating mean?
A reasonable, educated, rough calculation of an approximate number
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