加法算术

Mr. McDowell’s class read the first \(52\) pages of a book during the first week of school, \(46\) pages during the second week, \(51\) pages during the third week, \(42\) pages during the fourth week, \(30\) pages during the fifth week, and \(44\) pages during the sixth week. There are \(75\) pages left to read. How many pages does the book have in all?

麦克道尔先生的班级在第一周读完了一本书的前\(52\)页，第二周读了\(46\)页，第三周读了\(51\)页，第四周读了\(42\)页，第五周读了\(30\)页，第六周读了\(44\)页。还剩下\(75\)页没读。这本书一共有多少页？

Evaluate: \(290+9+2+492+5+393+3+0+1+5\).

计算 \(290+9+2+492+5+393+3+0+1+5\)

Find \(4+5+6+7+493+496+495\).

计算 \(4+5+6+7+493+496+495\).

What is \(161+653+837+1+280+343+2+3+720+421\)?

计算 \(161+653+837+1+280+343+2+3+720+421\).

At a supermarket, Max buys a pair of shoes worth \$\(45\), a \$\(66\) jacket, and a \$\(175\) DVD player. The cashier scans the shoes, the DVD player, and then the jacket, but Max insists that he would save money if the cashier scanned the more expensive items first. The cashier reluctantly does so, thus first scanning the DVD player, then the jacket, and finally the shoes. How many dollars does Max save by having the cashier follow his way?

在超市里，麦克斯买了一双价值 \(45\) 美元的鞋子、一件价值 \(66\) 美元的夹克和一台价值 \(175\) 美元的 DVD 播放机。收银员先扫描了鞋子，然后是 DVD 播放机，最后是夹克。但麦克斯坚持说，如果收银员先扫描价格较高的商品，他就能省钱。收银员勉强同意了，于是先扫描了 DVD 播放机，然后是夹克，最后是鞋子。如果收银员按照麦克斯的指示操作，麦克斯能省多少钱？

Find the sum of the positive integers from \(11\) to \(19\), inclusive.

求从 \(11\) 到 \(19\)（含 \(11\) 和 \(19\)）的所有正整数之和。

Farmer Bob’s dairy farm is ready for milking day. His \(199\) cows line up in the barn and he begins milking them. The first cow gives \(4\) pints of milk. The next cow gives \(5\) pints of milk. The next gives \(6\) pints, and so on, increasing by \(1\) pint each cow. How many pints of milk does the last cow give?

农夫 Bob 的奶牛场准备挤奶了。他的\(199\)头奶牛在牛棚里排成一排，他开始挤奶。第一头奶牛产了\(4\)品脱牛奶。第二头奶牛产了\(5\)品脱牛奶。再下一头奶牛产了\(6\)品脱牛奶，以此类推，每头奶牛的产奶量递增\(1\)品脱。最后一头奶牛产了多少品脱牛奶？

What is the sum of the first 40 positive odd integers?

前40个正奇数的和是多少？

Enter the number of the following expressions that are equal to \((5+61)+11+19\).
(a) \( (61+5)+19+11\)
(b) \(5+(61+11)+19\)
(c) \(11+5+61+19\)
(d) \(5+16+(11+91) \)
(e) \( (61+5+11+19) \)
(f) \(11+(5+61+19) \)

以下表达式中计算结果与\((5+61)+11+19\)相等的有几个？
(a) \( (61+5)+19+11\)
(b) \(5+(61+11)+19\)
(c) \(11+5+61+19\)
(d) \(5+16+(11+91) \)
(e) \( (61+5+11+19) \)
(f) \(11+(5+61+19) \)

Alice is trying to figure out how much time she spent solving a math problem. She knows she spent \(13\) minutes on Monday, \(8\) minutes on Tuesday, \(12\) minutes on Wednesday, \(0\) minutes on Thursday, and \(17\) minutes on Friday. What is the total amount of time she spent, in minutes?

爱丽丝正在计算她解决一道数学题花了多少时间。她知道自己周一花了\(13\)分钟，周二花了\(8\)分钟，周三花了\(12\)分钟，周四花了\(0\)分钟，周五花了\(17\)分钟。那么，她总共花了多少分钟？