Are You Smarter Than A 2nd Grader?

Multiplication

100

What is 2x2? or (2+2)

What is 4?

200

What is 2x4? (or 2+2+2+2)

What is 8?

300

What is 2x6? or (2+2+2+2+2+2)

What is 12?

400

What is 2x0? 

Any number times zero always equals 0

500

2x10? 

What is 20?

Addition

100

25+36=?

What is 61?

200

44+82?

What is 126?

300

120+35=?

What is 155?

400

Nayelis has 236 slime balls. Kaisha has 30 more. How many do they have altogether? Remember this is a two-step problem! 

Step 1: 236+30= Kaisha's slime balls: 266

Step 2: Altogether 236+266= 502 slime balls

500

346+657=?

What is 1,003?

Subtraction

100

56-42=?

What is14?

200

89-28=?

What is 61?

300

146-69=?

What is 77?

400

Joel has 356 pieces of candy corn. Joel gives away 46 pieces to his third-grade class. How many pieces of candy corn does he have left?

What is Joel has 310 pieces left? Yum!

500

647-568=?

What is 79?

Expanded Form

100

Expand 467

What is 400+60+7?

200

Expand 895

What is 800+90+5?

300

Expand. Solve: 

89+67=?

What is: 80+9/ 60+7 Then we add our ones 9+7 equals 16. I regroup my 10. Next, I add 80+60+10 and that gets me 150. Lastly, 150+6= 156 so I know that 89+67= 156.

400

Expand. Solve. 

76+93=?

What is: 70+6/ 90+3... Then we add our ones 6+3 equals 9. Next, I add 70+90 and that gets me 160. Lastly, 160+9= 169 so I know that 76+93=169.

500

Expand. Solve.

246+349=?

What is: 200+40+6//300+40+9. I add my ones first and get 6+9= 15. I regroup my ten and then add 40+40+10 and get 90. Then I move to my hundreds and add 200+300 which equals 500. So I have 500+90+5 and when I turn it into standard form I get 595. So, 246+349=595.

Estimation

100

Round 78 to the nearest 10.

What is 80?

200

Round 74 to the nearest 10.

What is 70?

300

Round 356 to the nearest hundred.

What is 400?

400

Estimate your sum. Then solve

45+61=?

What is 45 rounds to 50 since 5 or above gives it a shove. 61 rounds down to 60 since its 4 or below keep it down low. When I add 50+60 equals a sum of 110. My estimated sum is 110. That tells me my actual sum will be close to 110. When I solve 45+61 it equals 106. 106 is close to 110 when you round it to the nearest 10?

500

Estimate your sum. Then solve.

142+167=?

What is 142 rounds to 100 since 4 or below keeps it down low. 167 rounds to 200 since its 5 or above give it a shove. When I add 100+200 it equals 300. My estimated sum is 300. That tells me my actual sum will be close to 300. When I solve 142+167 it equals a sum of 309. 309 is still relatively close to 300?