REVIEW 1

Calculate: 245 plus 155 equals _______

• 300

• 400

• 90

• 100

Calculate: 367 minus 158 equals _______

• 300

• 525

• 209

• 100

Write number 555 in words

• five hundred and fifty-five

• five hundred and fivety-five

• five hundred and fifty

• five hundred and seventy

Write number 239 in words.

• two hundred and thirty

• two hundred and thirty-five

• two hundred and thirty-nine

• two hundred and threety-nine

What number is it?

• 453

• 345

• 452

• 456

What is the difference between 453 and 258?

(difference: hiệu)

• 194

• 195

• 711

• 801

What is the sum between 489 and 162?

(sum: tổng)

• 651

• 652

• 653

• 327

Compare: 643 _____ 239

• >

• <

• =

• +

What is the place of digit 7 in number 768?

(place: hàng)

• hundreds

• tens

• ones

• hundred

What is the place of digit 8 in number 568?

• hundreds

• tens

• ones

• one