Unit 1 - Whole Numbers Lesson 6: 1, 10, 100 more or less (1)

CHALLENGE 1Q1. Write the number that is 1 more than: Look at the numbers given below. Add (+1) to each of the numbers and you will get the answer. 59 44 122 143 288 109 Q2. Write the number that is 10 less than: Look at the numbers given below. Subtract (+10) to each of the numbers and you will get the answer. 75 19 143 174 187 206 CHALLENGE 2Q1. These are all parts of different number squares. Fill in the numbers that are 1 and 10 more and less. Instructions1. Look at the number at the centre.2. From top to bottom, additional and subtract (10).3. From left to right, additional and subtract (1). 174 194 185 183 225 245 236 234 419 439 430 428 753 773 764 762 547 567 558 556 836 856 845 847 Q2a. Write the missing numbers in the table. Instructions1. Look at the number at the centre.2. At the top, subtract (-100).3. At the bottom, additional (+100). 248 448 579 779 9 209 755 955 Q2b. Look at your answers in the table above. Which part of these numbers changes as you find 100 less and 100 more? The number in which position (hundreds, tens, or units) changes after completing the table from the previous question. Q3. Write the missing numbers in the table. Instructions1. Look at the number at the centre.2. At the top, subtract (-1).3. At the bottom, additional (+10). 792 803 499 510 896 907 299 310