第1章非負整数

The difference of $10$ and $3$

The difference of $12$ and $8$

The difference of $15$ and $4$

The difference of $18$ and $7$

Subtract $6$ from $9$

Subtract $8$ from $9$

Subtract $28$ from $75$

Subtract $59$ from $81$

$45$ decreased by $20$

$37$ decreased by $24$

$92$ decreased by $67$

$75$ decreased by $49$

$12$ less than $16$

$15$ less than $19$

$38$ less than $61$

$47$ less than $62$

Seventy-five more than thirty-five

Sixty more than ninety-three

$13$ less than $41$

$28$ less than $36$

The difference of $100$ and $76$

The difference of $\mathrm{1,000}$ and $945$

Temperature The high temperature on June $2$ in Las Vegas was $80$ degrees and the low temperature was $63$ degrees. What was the difference between the high and low temperatures?

Temperature The high temperature on June $1$ in Phoenix was $97$ degrees and the low was $73$ degrees. What was the difference between the high and low temperatures?

Class size Olivia’s third grade class has $35$ children. Last year, her second grade class had $22$ children. What is the difference between the number of children in Olivia’s third grade class and her second grade class?

Class size There are $82$ students in the school band and $46$ in the school orchestra. What is the difference between the number of students in the band and the orchestra?

Shopping A mountain bike is on sale for $\text{\$399}.$ Its regular price is $\text{\$650}.$ What is the difference between the regular price and the sale price?

Shopping A mattress set is on sale for $\text{\$755}.$ Its regular price is $\text{\$1,600}.$ What is the difference between the regular price and the sale price?

Savings John wants to buy a laptop that costs $\text{\$840}.$ He has $\text{\$685}$ in his savings account. How much more does he need to save in order to buy the laptop?

Banking Mason had $\text{\$1,125}$ in his checking account. He spent $\text{\$892}.$ How much money does he have left?

Road trip Noah was driving from Philadelphia to Cincinnati, a distance of $502$ miles. He drove $115$ miles, stopped for gas, and then drove another $230$ miles before lunch. How many more miles did he have to travel?

Test Scores Sara needs $350$ points to pass her course. She scored $75,50,70,\text{and}80$ on her first four tests. How many more points does Sara need to pass the course?