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Page 1 Add 2 Add 5 Subtract 5 12 12 Kishan runs a big plant nursery where he puts different varieties of plants. Villagers often come and take saplings from him to grow in their houses. Give and Take Give and Take 334 336 375 387 Add 6 Add 9 Subtract 6 Subtract 9 234 357 288 331 Page 2 Add 2 Add 5 Subtract 5 12 12 Kishan runs a big plant nursery where he puts different varieties of plants. Villagers often come and take saplings from him to grow in their houses. Give and Take Give and Take 334 336 375 387 Add 6 Add 9 Subtract 6 Subtract 9 234 357 288 331 151 Give and Take 364 Saplings + 52 Saplings = __________________ Saplings 364 + 52 = __________ Let us draw a box diagram for the problem. Let us use following systematic procedure to solve the problem. 364 Saplings ? + 52 Saplings 364 Saplings 52 Saplings Combine 10 tens to form 1 hundred Combine 3 hundreds with 1 hundred to get 4 hundreds On adding 364 to 52 we get 4 hundreds, 1 ten and 6 ones How many saplings in all? Hundreds Tens Ones 4 1 6 1. Kishan had 364 saplings of different herbs and flowers. Then he went to his friend’s village and brought 52 saplings from there. How many saplings does he have now? Page 3 Add 2 Add 5 Subtract 5 12 12 Kishan runs a big plant nursery where he puts different varieties of plants. Villagers often come and take saplings from him to grow in their houses. Give and Take Give and Take 334 336 375 387 Add 6 Add 9 Subtract 6 Subtract 9 234 357 288 331 151 Give and Take 364 Saplings + 52 Saplings = __________________ Saplings 364 + 52 = __________ Let us draw a box diagram for the problem. Let us use following systematic procedure to solve the problem. 364 Saplings ? + 52 Saplings 364 Saplings 52 Saplings Combine 10 tens to form 1 hundred Combine 3 hundreds with 1 hundred to get 4 hundreds On adding 364 to 52 we get 4 hundreds, 1 ten and 6 ones How many saplings in all? Hundreds Tens Ones 4 1 6 1. Kishan had 364 saplings of different herbs and flowers. Then he went to his friend’s village and brought 52 saplings from there. How many saplings does he have now? 152 Maths Mela | Class 3 364 374 384 394 404 414 Teacher’s Note: Encourage children to use the Dienes Blocks given at the end of the book and the number line for solving these problems. Children can do these problems by taking away and adding numbers in different ways. Discuss the relation between hundreds, tens and ones. 2. Kishan has got an order to deliver 230 saplings to a school. He has packed 75 saplings in an open box. How many more saplings does he need to pack? We have to subtract 75 from 230. We write the given problem as a box diagram: Hundreds Tens Ones 2 3 0 You can also use a number line to solve it. To take away 5 ones, we change 1 ten into 10 ones. We can now take away 5 ones from 10 ones. 75 Total ordered saplings: 230 Saplings in the box Saplings that need to be packed Let us use hundreds , tens and ones to solve the problem. Hundreds Tens Ones Page 4 Add 2 Add 5 Subtract 5 12 12 Kishan runs a big plant nursery where he puts different varieties of plants. Villagers often come and take saplings from him to grow in their houses. Give and Take Give and Take 334 336 375 387 Add 6 Add 9 Subtract 6 Subtract 9 234 357 288 331 151 Give and Take 364 Saplings + 52 Saplings = __________________ Saplings 364 + 52 = __________ Let us draw a box diagram for the problem. Let us use following systematic procedure to solve the problem. 364 Saplings ? + 52 Saplings 364 Saplings 52 Saplings Combine 10 tens to form 1 hundred Combine 3 hundreds with 1 hundred to get 4 hundreds On adding 364 to 52 we get 4 hundreds, 1 ten and 6 ones How many saplings in all? Hundreds Tens Ones 4 1 6 1. Kishan had 364 saplings of different herbs and flowers. Then he went to his friend’s village and brought 52 saplings from there. How many saplings does he have now? 152 Maths Mela | Class 3 364 374 384 394 404 414 Teacher’s Note: Encourage children to use the Dienes Blocks given at the end of the book and the number line for solving these problems. Children can do these problems by taking away and adding numbers in different ways. Discuss the relation between hundreds, tens and ones. 2. Kishan has got an order to deliver 230 saplings to a school. He has packed 75 saplings in an open box. How many more saplings does he need to pack? We have to subtract 75 from 230. We write the given problem as a box diagram: Hundreds Tens Ones 2 3 0 You can also use a number line to solve it. To take away 5 ones, we change 1 ten into 10 ones. We can now take away 5 ones from 10 ones. 75 Total ordered saplings: 230 Saplings in the box Saplings that need to be packed Let us use hundreds , tens and ones to solve the problem. Hundreds Tens Ones 153 Give and Take Subtracting 5 ones from 10 ones, we are left with 5 ones. Now we have to take away 70. Remember opening a hundreds block gives us 10 blocks of 10s. Hundreds Tens Ones 2 2 5 Teacher’s Note: Before going into standard algorithms, students should be encouraged to use Dienes blocks and a number line for solving various problems with different strategies. Hundreds Tens Ones Take away 70. We are left with this. Kishan has .......... saplings now. Hundreds Tens Ones Page 5 Add 2 Add 5 Subtract 5 12 12 Kishan runs a big plant nursery where he puts different varieties of plants. Villagers often come and take saplings from him to grow in their houses. Give and Take Give and Take 334 336 375 387 Add 6 Add 9 Subtract 6 Subtract 9 234 357 288 331 151 Give and Take 364 Saplings + 52 Saplings = __________________ Saplings 364 + 52 = __________ Let us draw a box diagram for the problem. Let us use following systematic procedure to solve the problem. 364 Saplings ? + 52 Saplings 364 Saplings 52 Saplings Combine 10 tens to form 1 hundred Combine 3 hundreds with 1 hundred to get 4 hundreds On adding 364 to 52 we get 4 hundreds, 1 ten and 6 ones How many saplings in all? Hundreds Tens Ones 4 1 6 1. Kishan had 364 saplings of different herbs and flowers. Then he went to his friend’s village and brought 52 saplings from there. How many saplings does he have now? 152 Maths Mela | Class 3 364 374 384 394 404 414 Teacher’s Note: Encourage children to use the Dienes Blocks given at the end of the book and the number line for solving these problems. Children can do these problems by taking away and adding numbers in different ways. Discuss the relation between hundreds, tens and ones. 2. Kishan has got an order to deliver 230 saplings to a school. He has packed 75 saplings in an open box. How many more saplings does he need to pack? We have to subtract 75 from 230. We write the given problem as a box diagram: Hundreds Tens Ones 2 3 0 You can also use a number line to solve it. To take away 5 ones, we change 1 ten into 10 ones. We can now take away 5 ones from 10 ones. 75 Total ordered saplings: 230 Saplings in the box Saplings that need to be packed Let us use hundreds , tens and ones to solve the problem. Hundreds Tens Ones 153 Give and Take Subtracting 5 ones from 10 ones, we are left with 5 ones. Now we have to take away 70. Remember opening a hundreds block gives us 10 blocks of 10s. Hundreds Tens Ones 2 2 5 Teacher’s Note: Before going into standard algorithms, students should be encouraged to use Dienes blocks and a number line for solving various problems with different strategies. Hundreds Tens Ones Take away 70. We are left with this. Kishan has .......... saplings now. Hundreds Tens Ones 154 Maths Mela | Class 3 Write word problems using the numbers given in the box diagrams below and solve them. You can take help from the pictures for appropriate contexts. Draw box diagrams, as shown above to solve the following problems. Then use HTO blocks or a number line to solve the problems. 1. Kishan has 456 saplings in August. He distributed 63 saplings. How many saplings are left with him? 2. Kishan has a collection of 309 saplings. He gets 80 more saplings of flowering plants. How many saplings does he have now? 3. Kishan has 270 saplings of herbs and his friend has 36 saplings of herbs. How many more saplings does Kishan have than his friend? 356 Books 234 Boys ? ? –138 Books +156 Girls Let us DoRead More
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