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KS2 · Calculation

KS2.M-Y3N2 Addition and Subtraction to 1000

Calculators not allowed · about 50 minutes

Total Marks

Name: _______________________________ Date: ____ / ____ / ______

Answer ALL questions. Show all your working.

Work out 342 + 117.

(1)

Add 476 and 389 using a written method.

(2)

Calculate 803 - 215.

(1)

Work out 602 - 347 using a written method.

(2)

Fill in the missing number: ? + 378 = 800

(1)

Charlie adds 245 to 167 and then adds 89. What is his final total?

(2)

Emma has 900 pence saved. She spends 467 pence and then 123 pence. How much does she have left?

(2)

Complete the column addition. 1) 358 + 424 =
2) 295 + 186 =

(2)

Which is greater? Explain your answer. 476 + 123 or 500 + 100

(2)

What is the difference between 700 and 645?

(1)

Sofia buys a book for 249 pence, a pencil case for 137 pence and a poster for 94 pence. How much does she spend altogether? If she pays with 600 pence, how much change should she get?

(3)

Complete the sequence by adding 50 each time: 150, __, __, 300

(1)

Estimate by rounding to the nearest 10, then calculate: Round 267 and 389 to the nearest 10 and add the rounded numbers. Finally, give the exact total of 267 + 389.

(2)

Use partitioning to add 423 + 256. Show your working.

(2)

A classroom has 3 boxes of crayons. Each box holds 278 crayons. How many crayons are there in all? Show a written method.

(3)

Explain why 700 - 299 = 401. Give a short written reason.

(2)

True or false? 345 + 456 = 801. Tick the correct answer and write one line to show why.

True
False

Three friends collect stickers. Maya has 312, Yusuf has 278 and Priya has 145. How many stickers do they have altogether? How many more stickers do Maya and Yusuf have together than Priya?

(3)

Mark scheme · KS2.M-Y3N2 Addition and Subtraction to 1000

Question 1

B1 459 cao
Answer: 459

Question 2

M1 Correct column addition method shown with ones total 15 leading to carry of 1 or equivalent working
B1 865 cao
Answer: 865

Question 3

B1 588 cao
Answer: 588

Question 4

M1 Correct subtraction with exchanging between tens and hundreds (e.g. showing 10 tens -> 1 hundred exchanged) or equivalent method
B1 255 cao
Answer: 255

Question 5

B1 422 cao
Answer: 422

Question 6

M1 Correct intermediate sum 245 + 167 = 412 seen or equivalent
B1 501 cao
Answer: 501

Question 7

M1 Correct subtraction 900 - 467 = 433 or shown as intermediate step
B1 310 cao
Answer: 310

Question 8

B1 782 cao for 358 + 424
B1 481 cao for 295 + 186
Answer: 1) 782; 2) 481

Question 9

M1 Correct calculation or comparison shown for at least one sum (476 + 123 = 599 or 500 + 100 = 600)
B1 Answer that 500 + 100 is greater with correct explanation (600 > 599) oe
Answer: 500 + 100 is greater because 600 > 599

Question 10

B1 55 cao
Answer: 55

Question 11

M1 Correct total spend shown, e.g. 249 + 137 + 94 = 480
M1 Correct subtraction for change shown, e.g. 600 - 480 = 120
B1 120 pence change cao
Answer: She spends 480 pence and gets 120 pence change

Question 12

B1 200, 250 cao
Answer: 200, 250

Question 13

M1 Correct rounded addition shown: 270 + 390 = 660
B1 Exact total 656 cao
Answer: Rounded sum 660; exact total 656

Question 14

M1 Partitioning shown, e.g. 423 + 200 = 623, then +50 = 673, then +6 = 679
B1 679 cao
Answer: 679

Question 15

M1 Correct method shown (either 278 + 278 + 278 or 278 x 3 with partial products)
M1 Intermediate correct sum seen, e.g. 556 and then +278 or 278 x 3 = 834 working
B1 834 cao
Answer: 834

Question 16

M1 Shows method using exchanging or complements, e.g. 700 - 300 = 400 then add 1 because only 299 subtracted
B1 Answer stating 401 with correct explanation cao
Answer: 700 - 299 = 401 because 700 - 300 = 400 and we subtracted 1 too many, so add 1 to make 401

Question 17

B1 Tick True and show brief calculation 345 + 456 = 801 or equivalent cao
Answer: True; 345 + 456 = 801

Question 18

M1 Correct total of all three shown, e.g. 312 + 278 + 145 = 735
M1 Correct total for Maya and Yusuf shown, e.g. 312 + 278 = 590
B1 Answer 735 for total and 445 (590 - 145) for difference cao
Answer: All together 735; Maya and Yusuf have 445 more stickers than Priya

Addition and Subtraction to 1000 - Worksheets, Questions and Revision