Addition
What is 20+10+20+10?
60
What is 48 -19?
48-20=28
28+1=29
What is 14+11+13?
10+10+10=30
and 4+1+3=8
30+8=38
43+ ? =63
63-43=20
SO...
43+20=63
I have no edges, I am 3 dimensional and I roll.
What is a sphere?
100+100+200+50+50=
500
Ms. Liu had 67 erasers. She gave 2 erasers to table 1, 2 to table 2, 1 to table 3, 3 to table 4 and 2 to table 5. How many erasers does she have left?
2+2+1+3+2=10
67-10=57
What is 24+17+3?
17+3=20
24+20=44
?+14=57
57 is the whole, 14 is one of the parts. Change the equation around to make it work for you!
Start with the whole, subtract the part you know to get the other part! 14=10+4
57-10=47. 47-4=43
All of my edges come to a point, I have a square base and triangle faces.
What is a square based pyramid?
I am 143+10
What is 153
Ms. Defazio had some new, bright markers. She lent Ms. Gresh 5 of them and now she has 11 left. how many markers did Ms. Defazio start with?
What is 16?
I am 14+35+6
First pair up 14+6, which is 20.
then 20+30=50 and
50+5=55
4, 8, 12, ?, 20, 24
What is 16?
I have 125 dollars and Jacob has 125 dollars. How many dollars do we have if we put our money together?
What is 250 dollars?
I am made of 2 hundreds, 8 tens and 7 ones.
What is what is 287.
222-12=
222-10=212
212-2=210
64+6+17=
Remember...4+6=10, so 64+6=70
Break 17 into tens and ones...(10+7), then add in pieces
70+10=80.
80+7=87
23, 26, ?, 32, 35
What is 29?
There are 100 salmon in the tank. 86 have names and ________ do not have names. How many do not have names?
14
What is 77 plus 30?
107
There are 200 salmon in the fish tank. 75 like to play while the rest like to sleep. How many salmon like to sleep?
What is 125?
125+25+25=
What is 175?
We have 88 students in our grade. We have 36 girls. How many boys are in the 2nd grade?
36+____=88 OR 88-36=____
Which equation is easier to solve? 88-36!
Take away 36 in CHUNKS!
88-30=58 58-6=52