Solving Word Problems involving series of operations

There were 56 vegetable plants in school. Today, 4 classes planted more vegetables. Each class planted 8 vegetables. How many vegetable plants are there now? 
*What is the mathematical expression to solve this word problem?

• $56-(4\times8)$

• $56+(4\times8)$

• $56\times(4+8)$

• $56\div\left(4-8\right)$

Tags

CCSS.3.OA.D.8

There were 56 vegetable plants in school. Today, 4 classes planted more vegetables. Each class planted 8 vegetables. How many vegetable plants are there now?

• 68 vegetable plants

• 78 vegetable plants

• 88 vegetable plants

• 98 vegetable plants

Tags

CCSS.7.EE.B.4A

Adeline buys 8 packs of Fun Gum. Each pack has 7 pieces of gum. Marisol buys Juicy gum. Each Juicy Gum pack has 9 pieces of gum. Adeline has 11 more pieces of gum than Marisol. How many packs of gum did Marisol buy?

*Which mathematical expression is appropriate for this word problem?

• $\left(8\ \times\ 7\ -11\right)\ \div\ 9$

• $\left(8\ \times\ 7\ +11\right)\ \div\ 9$

• $\left(9+7\right)\ \times8-11$

• $\left(9\ \times7\right)\ +8-11$

Adeline buys 8 packs of Fun Gum. Each pack has 7 pieces of gum. Marisol buys Juicy gum. Each Juicy Gum pack has 9 pieces of gum. Adeline has 11 more pieces of gum than Marisol. How many packs of gum did Marisol buy?

• 2 packs of gum

• 3 packs of gum

• 4 packs of gum

• 5 packs of gum

Last summer, Jon’s family found 152 shells at the beach. This summer they were at the beach for 7 days. Each day they found 9 shells. How many fewer shells did they find this year than last year?

*What mathematical expression can we derive from this problem?

• $152\ \div\left(7+9\right)\ =$

• $152\ \div\left(7×9\right)\ =$

• $152\ -\left(7+9\right)\ =$

• $152\ -\left(7×9\right)\ =\ _{ }$

Last summer, Jon’s family found 152 shells at the beach. This summer they were at the beach for 7 days. Each day they found 9 shells. How many fewer shells did they find this year than last year?

• 99

• 89

• 79

• 69

Mr. Darwin had 32 markers in his classroom. He buys new boxes of markers that have 9 markers in each box. Now, he has a total of 86 markers. How many new boxes did he buy?
*What is the most appropriate mathematical expression for this problem?

• $\left(86\ +32\right)\ \div9$

• $\left(86\ -32\right)\ \div9$

• $86-32+9$

• $86+32+9$

Mr. Dent had 32 markers in his classroom. He buys new boxes of markers that have 9 markers in each box. Now, he has a total 86 markers. How many new boxes did he buy?

• 2 new boxes of markers

• 4 new boxes of markers

• 6 new boxes of markers

• 8 new boxes of markers

The pupils in three sewing classes cut 728 inches of ribbon into 8-inch long pieces. Two of the classes together cut 656 inches of ribbon. How many 8-inch long pieces of ribbon did the other class cut?
*Which mathematical expression is correct for this word problem?

• $\left(728-656\right)\div8$

• $\left(728+656\right)\div3$

• $\left(728+656\right)\div8$

• $\left(728-656\right)\div3$

The pupils in three sewing classes cut 728 inches of ribbon into 8-inch long pieces. Two of the classes together cut 656 inches of ribbon. How many 8-inch long pieces of ribbon did the other class cut?

• 7

• 8

• 9

• 10