SCRATCH YOUR BRAIN- MATH

B. YOUNG

4th Grade

Monday

A caller gives a place value clue, such as, “I’m thinking of a number that has 6 hundreds, 3 tens, and 5 ones.” The caller chooses another student to write the numeral on the board (635). If successful, the students doing the writing becomes the caller.

Tuesday

If it cost 25 cents to make a straight cut on a board, how much will it cost to cut that board into 7 pieces?

Wednesday

I am a 2-digit number less than 84. The sum of my digits is 9. The ones digit is twice the tens digit. Who am I?

Thursday

A person bought a horse for $275, sold it for $295, buys it back for $325 and sells it again for $350. After all of that, has the person made or lost money, and how much?

Friday

Penny’s parents had three kids. One was named Nickel, and one was named Dime. What was the name of their third kid?