Grades 3-4 Video Solutions 2020-2020Levels34prob6

Video Transcription

Problem number 6. Ellie draws the big square shown in the picture with chalk on the pavement.  She starts at the square marked number 1 and begins jumping. Each time she jumps, she always jumps to a number that is 3 more than the number she is standing on. What is the largest  number Ellie can jump to? A-11, B-14, C-18, D-19, E-24. Ellie starts on 1 and jumps to 4 because 1 plus 3 is 4, then 4 plus 3 is 7, and 7 plus 3 is 10, then 10 plus 3 is 13,  then 13 plus 3 is 16, and then 16 plus 3 is 19, and 19 plus 3 would be 22, which we do not have,  so 19 is our answer.

Video Summary

Ellie starts jumping from number 1 on a square, with each jump increasing by 3. Following the sequence 1, 4, 7, 10, 13, 16, and 19, she cannot jump to 22 because it isn't an option. Therefore, the largest number she can jump to is 19. Hence, the answer is D-19.