Math Adding and Subtracting

Mrs. Kiesling had 474 sharp pencils. Nora helped her sharpen 137 more. how many pencils does she have rounded to the nearest tens?

• 611

• 600

• 620

• 610

604-266=

• 338

• 462

• 348

• 870

At the pool Joey swam 242 laps less than Emily. Emily swam 617 laps at the pool. How many laps did Joey swim?

• 375 laps

• 859 laps

• 259 laps

• 875 laps

Isaac scored 236 runs during the first half of the season. He scored 285 in the second half. How many runs did he score during the whole season?

• 521 runs

• 621 runs

• 49 runs

• 21 runs

1000+485

• 585

• 10,485

• 1,585

• 1,485

The chefs baked 310 more muffins at 5 am than at 8 am. They baked 472 at 8 am. How many muffins did they bake at 5 am?

• 782 Muffins

• 782

• 162

• 162 Muffins

Kingston had 215 more pens than Alex did. Kingston had 340. How many did Alex have?

• 555 pens

• 444 pens

• 125 pens

• 155 pens

Which shows an example of Identity (Zero) Property of Addition?

• 2 + 3 = 3 + 2

• (1 + 2) + 3 = 1 + (2 + 3)

• 1 + 0 = 1

Which shows an example of Commutative (Order) Property of Addition?

• 2 + 3 = 3 + 2

• (1 + 2) + 3 = 1 + (2 + 3)

• 1 + 0 = 1

Which shows an example of Associative (Grouping) Property of Addition?

• 2 + 3 = 3 + 2

• (1 + 2) + 3 = 1 + (2 + 3)

• 1 + 0 = 1