Addition and Subtraction

Using Addition

100

Estimate 1,148+231=

What is 1,000+200=1,200

200

Estimate 5,873 + 3,965 =

What is 6,000 + 4,000= 10,000

300

Estimate and then Solve 1,645 +1,279

What is 2,000 + 1,000= 3,000 What is 2,924

400

Estimate and then solve. 4,633 + 210

What is 5,000 + 200 = 5,200 What is 4,843

500

Estimate and Solve. 108,576 + 334,127 =

What is 100,000 + 300,000 = 400,000 What is 442,703

Adding 3 or More Numbers

100

Find the sum. 5,486+1,875+45=

What is 7,406

200

Find the sum. 327, 987 + 2,096 + 15,098 + 7, 945

What is 353,126

300

Find the sum. 248,738 + 505, 234 + 91, 836 + 6,237 =

What is 852,045

400

Jiannie added 6,641 + 1,482 + 9,879. Should her answer be more than or less than 15,000? Explain.

What is Her answer should be more than 15,000 because when estimated it is rounded to 18,000.

500

Riley added 10,429 + 7,699 + 735,314 and got 917,303. Is this sum reasonable?

What is 917,303 is unreasonable because if you were to estimate this sum you would get 718,000 which is not close to 917,303.

Using Subtraction

100

Estimate then find the real answer. 28,521-19,203=

What is 10,000 What is 9,318

200

Estimate and then find the real answer. 137,242-48,158

What is 50,000 What is 89,084

300

Subtract. 823,721-576,459

What is 247,262

400

Subtract. 12,007-2,366

What is 10,641

500

Subtract. 16,790-1,298

What is 15,492

Inverse Operation

100

Find the difference. Write the operation you can use to check your answer. 6, 406-1,759

What is 4,647; addition

200

What is an inverse operation

What is the opposite of an operation. Example addition and subtraction.

300

Find the sum and check your work. 536, 192 + 243, 808

What is 780,000

400

Find the difference and check using the inverse operation. 5,090-1,623

What is 3,467

500

There are 237 students at Johnson Elementary School. There are 188 students at Hoover Elementary School. How many more students are at Johnson than at Hoover? Draw your part, part, whole diagram.

What is 49.

Word Problems

100

Gabe grew 127 turnips. Jayden grew 135 turnips. How many turnips did they grow in total ?

What is 262 turnips.

200

Sophia's high school played 946 basketball games this year. She attended 313 games. How many basketball games did Sophia miss ?

What is 633 games.

300

There are 135 rulers and 120 erasers in the drawer. Chantz placed 111 more rulers in the drawer. How many rulers are now there in total ?

What is 246 rulers

400

Eddie picked 112 plums and Elijah picked 129 plums. Ashton picked 107 lemons. How many plums were picked in total ?

What is 241 plums.

500

Aimee found 830 seashells and 118 starfish on the beach. She gave 171 of the seashells to Sam. How many seashells does Aimee now have ?

What is 659 seashells.