Reproducible Material
LES1
• ACTION! Student
• ACTION! Answer Key
• Observation Grids
NAMEDATE
Review
ACTION!
1 Answer the following questions using digits.
a) What number is 100 times greater than two hundred and thirty-three thousand?
b) What number is 10 times less than three billion two hundred million?
c) What number is 1 000 times greater than two million five hundred thousand
two hundred?
2 Calculate the difference between
5 004 182 and 285 088.
3 Calculate the sum of 998 329 078
and 335 798.
4 Use the following information to find the distance between Earth and Saturn.
• Earth is 150 432 987 km from the Sun.
• Saturn is 1 502 086 022 km from the Sun.
Review 1 Reproducible Material | LES 1
1
NAMEDATE
5 Round the number 3 628 582 to the required place value.
a) To the nearest ten
b) To the nearest thousand
c) To the nearest hundred
d) To the nearest million
6 Write the following numbers in digits.
a) Two million fifty-eight thousand and twenty-two
b) Three hundred and four million six hundred and one
c) Eight billion ninety-seven thousand and four
d) Seventy-seven thousand one hundred and nine
e) Two hundred and five thousand and thirty-six
2
LES 1 | Reproducible Material
Review 1
NAMEDATE
Review
ACTION!
1 Answer the following questions using digits.
a) What number is 100 times greater than two hundred and thirty-three thousand?
I am looking for a number 100 times greater than 233 000.
Therefore, 100 3 233 000 5 23 300 000.
b) What number is 10 times less than three billion two hundred million?
I am looking for a number 10 times less than 3 200 000 000.
Therefore, 3 200 000 000 4 10 5 320 000 000.
c) What number is 1 000 times greater than two million five hundred thousand
two hundred?
I am looking for a number 1 000 greater than 2 500 200.
Therefore, 1 000 3 2 500 200 5 2 500 200 000.
2 Calculate the difference between
5 004 182 and 285 088.
3 Calculate the sum of 998 329 078
and 335 798.
To subtract correctly, the place values
must to be properly aligned.
5
2
4
0
0
4
1
8
2
2
8
5
0
8
8
7
1
9
0
9
4
To add correctly, the place values must
to be properly aligned.
9
9
8
1
9
9
8
3
2
9
0
7
8
3
3
5
7
9
8
6
6
4
8
7
6
4 Use the following information to find the distance between Earth and Saturn.
• Earth is 150 432 987 km from the Sun.
• Saturn is 1 502 086 022 km from the Sun.
1
2
1
5
0
2
0
8
6
0
2
2
1
5
0
4
3
2
9
8
7
3
5
1
6
5
3
0
3
5
Answer: 1 351 653 035 km
Review 1 Reproducible Material | LES 1
1
NAMEDATE
5 Round the number 3 628 582 to the required place value.
a) To the nearest ten
3 628 582 à Leave the tens digit at 8, since the unit 2 , 5.
Answer: 3 628 580
b) To the nearest thousand
3 628 582 à Increase the thousands digit to 9, since the hundred digit 5 $ 5.
Answer: 3 629 000
c) To the nearest hundred
3 628 582 à Increase the hundreds digit to 6, since the tens digit 8 $ 5.
Answer: 3 628 600
d) To the nearest million
3 628 582 à Increase the millions digit to 4, since the hundred thousands digit 6 $ 5.
Answer: 4 000 000
6 Write the following numbers in digits.
a) Two million fifty-eight thousand and twenty-two
2 058 022
b) Three hundred and four million six hundred and one
304 000 601
c) Eight billion ninety-seven thousand and four
8 000 097 004
d) Seventy-seven thousand one hundred and nine
77 109
e) Two hundred and five thousand and thirty-six
205 036
2
LES 1 | Reproducible Material
Review 1