Share Grade 2 Topic 1-enVisions Math
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Chris draws 8 birds. Luke draws 4 birds. How many birds to they draw in all. How can I count on to solve?
I start at 8....9, 10, 11, 12
12 birds in all
Lisa has 7 pencils. Armando has 2 more pencils than Lisa. How many pencils do they have in all? (**You have to solve 2 problems!)
Add 7 + 2 to find Armando. 9
Then add 9 + 7
16 in all
Using this tens frame, how do I make a 10 to solve 7 + 6?
Move 3 over to make 10. Then add the 3 left. 10+3=13 so 7+6=13
Which have a sum of 14? 8+7 7+7 8+6 10+4 9+4
7+7 8+6 10+4
5 friends want to play baseball. They need 9 players to make a team. How many more players do they need?
5 + 4 = 9
4 more players
What strategy is this? 6..... 7, 8, 9
counting back, addition fact, counting on
counting on
What strategy is this? 9 - 6 = 3
counting back, subtraction fact, counting on
subtraction fact
What strategy is this? 6 + 3 = 9
subtraction fact, addition fact, counting on
addition fact
What strategy is this? 9... 8, 7, 6
subtraction fact, counting on, counting back
counting back
Juan as 17 toy cars. He gives his brother 9 toy cars. What addition fact can help you find how many he has left?
17 - 9 = 8 so,
9 + 8 = 17
Using the tens frame, how can you make a ten with 16-8?
Take away 6 to get 10, then take away 2 more. 10-2 = 8
16 - 8 = 8
Jen has some rings. She gives 5 rings to Carrie. Now Jen has 7 rings. How many rings did Jen have at first? What equation would you use?
5 + __ = 12
She had 7 rings at first.
Marco has 8 apples Jerry gives him some more apples. Now Marco has 16 apples. How many apples did Jerry give to Marco?
8 + __ = 16
Jerry gave him 8 apples.
A pet store had 12 fish. The next day they sold 3 fish. The day after that, they sold 4 more fish. How many fish does the store have now? What equations would you use?
12 - 3 = 9
9 - 4 = 5
5 fish are left at the store
If you put in 5 in the blanks, would the answers be true?
Yes or no?
9 + ___ = 16
10 + ___ = 15
15 - 10 = ____
9 + 7 = 16 NO
10 + 5 = 15 YES
15 - 10 = 5 YES
Eric has 6 marbles. Maria has 4 marbles. How many marbles do they have in all? What equation would you use?
6 + 4 = 10
10 marbles in all
