Add & Subtract Pt.1
Find the value of the sum. Be able to explain.
4,518+ 2,835
7,353
Jada writes the same digit in the two blanks to make the statement true. What digits could she write?
6_,432 < 65,_98
0,1,2,3,4,5
Find the value of 300,526- 4,472
296,054
Describe the numbers that are 460,000 when rounded to the nearest 10,000.
455,000-464,999
Find the value of the difference. Be able to explain.
5,627- 2,134
3,493
Order these numbers from least to greatest:
98,107
102,356
752,031
88,207
99,653
88,207 , 98,107 , 99,653 , 102,356 , 752,031
In 2018 the population of Boston is estimated as 694,583 and the population of Seattle is estimated as 744,995.
Find the difference in the populations of the two cities.
50,412
When rounded to the nearest 1,000, Airplane X is flying at 30,000 feet, Airplane Y at 31,000 feet, and Airplane Z at 32,000 feet.
Could Airplanes X and Y be within 1,000 feet of each other? If you think so, give some examples. If you don't think so, explain why not.
Yes, Airplane X could be flying at 30,300 feet and Airplane Y could be at 30,600 feet. Or Airplane X could be flying at 30,000 feet and Airplane Y could be flying at 30,750 feet.
Clare took 11,243 steps on Sunday and 12,485 steps on Sunday.
How many steps did Clare take altogether on Saturday and Sunday?
23,728
Which multiple of 10,000 is closest to 132,256?
Which multiple of 100,000 is closest to 132,256?
130,000
100,000
Find the value of each sum and difference using the standard algorithm.
118,257+ 367,095
122,518- 72,479
485,352
50,039
Pick 6 different digits 0-9. Using each digit only once, can you put the 6 digits in the blanks so that all three statements are true?
1. 4,_23 > _,978
2. _2,403 > 42,_01
3. 43_,257 > 4_5,937
1. 4,_23 > _,978
2. _2,403 > 42,_01
3. 43_,257 > 4_5,937
Clare took 11,243 steps on Saturday and 12,485 steps on Sunday.
How many more steps did Clare take on Sunday than on Saturday?
1,242
For the number 583,642:
1. What is the nearest multiple of 100,000?
2. What is the nearest multiple of 10,000?
3. What is the nearest multiple of 1,000?
4. What is the nearest multiple of 100?
5. What is the nearest multiple of 10?
1. 600,000
2. 580,000
3. 584,000
4. 583,600
5. 583,640
Use the information to determine when the airplane, telephone, printing press, and automobile were first invented.
- The airplane was invented in 1903.
- The printing press was invented 453 years before the most recent invention.
- The automobile was invented 15 years before 1900.
- It was 426 years after the invention of the printing press that the telephone was invented.
The automobile and telephone were invented the closest together in time with only 9 years between them.
- Airplane: 1903
- Telephone: 1876
- Printing press: 1450
Automobile: 1885
To answer these riddles, think about rounding to the nearest 10, 100, 1,000, or 10,000.
1. I can be rounded to 100 or to 140. What number could I be?
2. I can be rounded to 7,500 or 8,000. What number could I be?
3. I can be rounded to 60,000 or 57,000. What number could I be?
1. A number greater than 134 and less than 145 can be rounded to 100 if rounded to the nearest 100 and 140 if rounded to the nearest 10.
2. Any number greater than 7,499 and less than 7,550 can be rounded to 7,500 if rounded to the nearest 100 and to 8,000 if rounded to the nearest thousand.
3. Any number greater than 56,499 and less than 57,500 can be rounded to 57,000 if rounded to the nearest 1,000 and 60,000 if rounded to the nearest 10,000.