Challenge yourself with complex problems involving place value, number patterns, and critical thinking
Mrs. Johnson's class counted by 10s and reached 90. They counted 3 more times by 10s. What number did they reach?
A mystery number has 7 ones and 2 more tens than the digit in the ones place. What is the number? ___
Ones = 7, Tens = 7 + 2 = ?
Lucas skip counted by 5s starting from 45. Which number would he NOT say?
If you arrange numbers from greatest to smallest, 108 would come before 118.
What number is 10 less than 10 more than 75? ___
First add 10 to 75, then subtract 10.
Emma wrote a two-digit number. The sum of its digits is 11, and the tens digit is 3 more than the ones digit. What number did she write?
When counting by 2s from 88, you will eventually say 100.
A number is between 50 and 60. Its ones digit is twice its tens digit. What is the number?
Three friends each counted to a different number: Ana reached 67, Ben reached 76, and Carl reached 72. Who counted the furthest? ___
Compare by looking at the tens place first.
Which pattern is correct?
A number has digits that add up to 15. The tens digit is 7. What is the number? ___
7 + ? = 15
The number 99 is only 1 away from the first three-digit number.
Sarah has 47 marbles. She wants to have the same number as her friend who has 74 marbles. How many more marbles does Sarah need?
If you start at 115 and count backward by 10 three times, what number will you reach? ___
115 - 10 - 10 - 10 = ?
Which statement about the number 106 is TRUE?
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