How can I check this subtraction equation with addition?
55 - 32 = 23
23+32=55
A red string is 17 cm long. A blue string is 85 cm long. How much longer is the blue string than the red?
85-17=68 cm
Solve.
645 + 62 =
707
Do you wake up for school in the A.M. or P.M.?
A.M.
Draw a quadrilateral.
Any shape with 4 sides and 4 angles.
Write a 3-digit addition and a 3-digit subtraction equation that are related.
Answers will vary.
There are some candies in the jar. Jason eats 15 of the candies. Now there are 48 candies in the jar. How many candies were in the jar to start with?
63 candies
Solve.
854 - 426 =
428
How many sides does a pentagon have?
5 sides
Which phrase makes the statement true?
326 is ________ than 336
10 more
10 less
100 more
100 less
10 less

450 - 300 = 150
Caleb's book had 56 Pokémon cards inside. His book has 20 fewer Pokémon cards than Shannon's book. How many Pokémon cards did Shannon's book have?
76 Pokémon cards
_____ + 50 = 800
750
Maria puts her pajamas on at what time?
8:30 P.M.
12:00 noon
8:30 A.M.
12:00 midnight
8:30 P.M.
____ + 20 = 251
231

700 - 130 = 570
Tina had 642 erasers. She gave half of them to her best friend, Sarah. How many erasers does each girl have now?
Tina - 321 erasers
Sarah - 321 erasers
540 - ____ = 318
222
Draw two squares. Partition each square into 4 equal shares - two different ways.
Answers vary!
476 is ____________ than 576
10 more
10 less
100 more
100 less
100 less
Solve this equation using compensation and one other strategy.
700-310=
Compensation: 700-310=390
699-309=390
Other strategy: Place value, vertical way, arrow way, etc.
Lila had 38 stickers in her sticker book.
Her friend gave her 17 more stickers.
A. How many stickers does Lila have now?
B. Later, Lila used 29 stickers to decorate a card. How many stickers does Lila have left now?
A. 38 + 17=55 stickers
B. 55 - 29 = 26 stickers
Solve using two different strategies.
700 - 234 =
466
Vertical way, place value chart, arrow way, or compensation (tape diagram)
Bruno orders a pizza with 6 slices. He eats 3 slices. How much of the pizza does Bruno eat?
Bruno eats half of the pizza.
Draw a shape with 4 sides and 4 angles. 2 sides must be parallel.
What is this shape called?
Trapezoid