Rounding
Round 47 to the nearest ten.
What is 50?
25 + 30?
What is 55?
What is 6 x 4?
What is 24?
What is 12 divided by 5?
What is 2 with Remainer 2?
I am a number greater than 1. I have exactly two factors: 1 and myself. What kind of number am I?
What is a prime number?
Round 386 to the nearest hundred.
What is 400?
Lily has 68 stickers. She gives 25 to her friend. How many does she have left?
What is 43?
What is 9 x 36?
What is 324?
What is 29 divided by 4?
What is 7 Remainder of 1?
I’m a number between 20 and 30. I have more than two factors. What kind of number am I, and give one example.
What is a composite number? (Examples: 21, 22, 24, 25, 26, 27, 28)
What is 5,000?
What is 437 + 286?
What is 723?
What is 142 x 3?
What is 426?
What is 156 divided by 3?
What is 52?
Answers may vary - checked by judge.
Round 67,891 to the nearest thousand.
What is 70,000?
A school had 1,205 students last year. This year, 478 more students joined. How many students are there now?
What is 1,683?
What is 48 x 26?
What is 1,248?
What is 874 divided by 6?
What is 145 Remainder of 4?
Look at these numbers: 7, 12, 17, 20. Which ones are prime?
What are 7 and 17?
Round 4,738,296 to the nearest hundred thousand.
Emma had 2,000 beads. She used 643 beads for bracelets and 517 beads for necklaces. How many beads does she have left?
What is 840?
What is 3,062 x 4?
What is 12,248?
What is 2,507 divided by 7?
What is 358 Remainder of 1?
True or false: All odd numbers are prime.
If false, give an example of an odd number that is not prime and explain why.
What is false?
Example: 9 is odd but not prime because it has three factors: 1, 3, and 9.