Lesson 18 Session 4

Which equations could you use to check if this subtraction equation is correct?

573 – 287 = 286 

Choose ALL the correct answers.

• 286 + 287 = 573

• 286 + 286 = 572

• 287 + 286 = 573

• 889 – 286 = 573

Mrs. Dore has 171 mints. Mrs. Broussard has 139 mints. 

Which equations could be used to find how many mints Mrs. Dore  
and Mrs. Broussard have IN ALL? Choose ALL the correct answers.

• 171 + 139 = ?

• 71 − ? = 139
  

• 200 + 10 + 10 = ?

• 170 + 130 + 10 = ? 

415 + 285

• 690

• 270

• 600

• 700

• 790

A flower has 355 roses. There are 180 white roses. The rest are red. Which equations could you use to find how many roses are red? Choose 3 answers.

• 355 + ? = 180

• ? + 180 = 355

• 180 + 355 = ?

• ? - 355 = 180

• 180 + ? = 355

Choose the equations that you could use to solve the problem below:

? - 382 = 417

• 417 - ? = 382

• 382 + 417 = ?

• 417 - 382 = ?

• 417 + 382 = ?

512 + 378

• 890

• 880

• 900

• 870

• 920

623 + 157

• 740

• 760

• 780

• 750

• 770

349 + 451

• 830

• 820

• 810

• 790

• 800