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1. Fill in the blanks with the number 20,900
The value of the digit 9 in 20,900 is
The digit 2 stand for the 20,900 is
The expanded form of 20,900:
+ = 20,900
2a. Fill in the blank
70,000 + 500 + 6 =
2b. Fill in the blank
54 + 55,700 =
2c. Fill in the blank
600 + 200,000 + 50,000 + = 250,608
2d. Fill in the blank
9 + 500,000 + 600 + 30,000 + 1,000 =
3a. Fill in the blank
99,990 + = 100,000
3b. Fill in the blank
38,056 – = 37,056
3c. Fill in the blank
+ 100 = 45,682
3d. Fill in the blank
– 10,000 = 987,600
4a. Arrange the numbers in increasing order
7658, 27580, 189758, 72980
, , ,
4b. Arrange the numbers in increasing order
40308, 43803, 40380, 50083
, , ,
4c. Arrange the numbers in increasing order
139509, 153990, 135099, 153909
, , ,
5a. Complete the number patterns
6274, 6174, , , , 5774
5b.Complete the number patterns
43850, 43950, , , , 44350
5c. Complete the number patterns
50075, 40075, 30075, , ,
6a. Fill in the blank
ten thousands = 450,000
6b. Fill in the blank
thousands = 450,000
7a. Rounding
979, 590 is close to when rounded to the nearest ten thousand
979, 590 is close to when rounded to the nearest thousand
7b. Rounding
959, 168 is close to when rounded to the nearest ten thousand
959,168 is close to when rounded to the nearest thousand
7c. Rounding
937, 820 is close to when rounded to the nearest ten thousand
937, 820 is close to when rounded to the nearest thousand
6c. Fill in the blank
hundreds = 450,000
8a. What sign,>,<, or=, goes in each 〇?
133,795 + 10,000 〇 40,000 + 100,000 + 70 + 900 + 5
8b. What sign,>,<, or=, goes in each 〇?
98,978 + 100 〇 90,000 + 8,000 + 700 + 9
8c. What sign,>,<, or=, goes in each 〇?
7 + 90 + 2,000 〇 3,000 – 1
8d. What sign,>,<, or=, goes in each 〇?
40,009 – 1,000 〇 30,000 + 9 + 9,000