Addition
45 + 20 =
65
35 - 20 =
15
What is 456 in expanded form?
400 + 50 + 6
is it equal?
17 - 5 ___ 8
no. 17 - 5 = 12
How many legs does an octopus have?
8 legs
234 + 110 =
344
259 - 50 =
209
What number is this?
300 + 20 + 3
323
Is it equal?
16 ___ 16 + 0
yes
True or False:
Rubber bands last longer when you refrigerate them.
True!
55 + 79 =
134
326 - 120 =
Which is another way to write 130
a. 100 + 3
b. 100 + 30 + 5
c. 100 + 20 + 10
C. 100 + 20 + 10 = 130
It is equal?
25 + 3 ___ 29
no. 25 + 3 = 28
Water covers what percentage of the world?
70%
164 + 78 =
242
239 - 46 =
193
Which number sentence could be used to solve this problem?
289 − 15 =
a. 200 + 89 + 15
b. 270 + 19 - 15
b. 270 + 19 - 15
It is equal?
10 + 3 + 4 _____ 15 + 2
Yes.
10 + 3 + 4 = 17
15 + 2 = 17
What is the only fruit that has seeds on the outside?
287 + 63 =
350
482 - 37 =
445
What is another way to write 428?
a. 400 + 20 + 10
b. 100 + 200 + 28
c. 200 + 200 + 10 + 18
c. 200 + 200 + 10 + 18 = 428
20 + 6 - 3 ____ 23
Yes.
20 + 6 - 3 = 23
No words in the dictionary rhyme with the word _____
orange