1、In 3679, what digit is in the tens place?
A.3
B.6
C.7
D.9
2、In 0.873, in which place is the 3?
A.Units
B.thousandths
C.tens Dtenths
3、How do you write this number using words?
9981
4、How do you write this number using words?
7321
5、How do you write this number using digits?
four thousand two hundred and ten
Ⅰ（1）、V（5）、X（10）、L（50）、C（100）D（500）、M（1000）6、What number does LXXVII represent ？
7、How would you write 351 as a Roman numeral?
8、How would you write 3891 as a Roman numeral?
9、How would you write 456 as a Roman numeral?
10、How do you write 0.39 in words?
11、Write seven tenths as a decimal number.
12、What is 8.4 rounded to the nearest whole number?
13、What is 1.9 rounded to the nearest whole number?
Type a digit that makes this statement true.
14、154,000 is the result when 15 ,489 is rounded to the nearest thousand.
15、109,700 is the result when 109, 01 is rounded to the nearest hundred.
16、If when 735,5 6 is rounded to the nearest ten, the result is 735,530, what could be the missing digit?
A. 7
B.2
C.0
D.3
17、If 400,000 is the result when 18,275 is rounded to the nearest hundred thousand, what could be the missing digit? 18、If 2,899 rounded to the nearest ten thousand is 10,000, what could be the missing digit?
19、If 67 ,332 rounded to the nearest thousand is 677,000, what could be the missing digit?
20、When 1,906 is rounded to the nearest ten thousand, the result is 60,000.
Which digit makes this statement true?
21、When 356,8 7 is rounded to the nearest ten, the result is 356,880.
A. 4
B.7
C.0
D.2
22.3+41.03=26×2.83=
36.4+2.58=65.22-3.44=
16.31+73.51= 5.5×4.5=
21.04+88.3= 5.4-0.405=
62.1-17.07=43.5-27.34= 12.03+0.875=37.8-3.02= 33.33-29.12= 90.12+22.13= 57.91+33.12= 44.21+39.12= 128.1-29.11= 33.12-12.1= 19.11×22= 21.33×33= 14.333+21.22= 15-31.11=
43.1×21= 33.12×13=
33.11×22= 88.12×9=
142.33-111.22=
333.12-48.5=
512 +34 =
112 +710 =
38 +18 =
415 +56 =
12 +34 =
34 - 38 =
56 -13 =
13 +310 =
