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+/- Numbers Year 3-4 – Addition and subtraction of hundreds within 1000
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500 900 600 700 800 400 100 200 1000 300 nine hundred eight hundred
one thousand five hundred three hundred two hundred four hundred one hundred six hundred seven hundred
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1000 600 200 400 300 500 700 900 800 100 three hundred one hundred
two hundred six hundred eight hundred nine hundred seven hundred one thousand five hundred four hundred
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= 1000
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= 1000
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= 1000
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= 1000
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= 1000
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= 500
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= 800
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= 200
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= 400
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100 70 2 = 172
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100 8 = 108
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100 10 4 = 114
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100 90 8 = 198
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100 3 = 103
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100 70 2 = 72
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100 8 = 8
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100 10 4 = 14
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100 90 8 = 98
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100 3 = 3
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400 500 10 2 Find 100 more than 412. = 512
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300 400 9 Find 100 more than 309. = 409
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400 300 10 2 Find 100 less than 412. = 312
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300 200 9 Find 100 less than 309. = 209
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1000 100 700 900 800 600 200 500 300 400 30 8
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45 145 245 345 445 545 645 745 845 945 Complete +10 number sequences
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= 777 +100 +100 +100 477 577 677 777 Adding by counting forwards on a number line
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= 918 +100 +100 +100 +100 518 618 718 818 918 Adding by counting forwards on a number line
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= 884 +100 +100 +100 +100 484 584 684 784 884 Adding by counting forwards on a number line
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600 900 300 500 400 800 700 200 100 20 6
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988 888 788 688 588 488 388 288 188 88 Complete +10 number sequences
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= 176 -100 -100 -100 176 276 376 476 Adding by counting forwards on a number line
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= 293 -100 -100 -100 -100 -100 -100 -100 293 393 493 593 693 793 893 993 Adding by counting forwards on a number line
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= 336 -100 -100 -100 -100 -100 336 436 536 636 736 836 Adding by counting forwards on a number line
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450 550 + ___ = 1000
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350 650 + ___ = 1000
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250 750 + ___ = 1000
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150 850 + ___ = 1000
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50 950 + ___ = 1000
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340 + ___ = 1000 660 60 more makes 400. 600 more makes 1000. 660
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570 + ___ = 1000 430 30 more makes 600. 400 more makes 1000. 430
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820 + ___ = 1000 180 80 more makes 900. 100 more makes 1000. 180
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210 + ___ = 1000 790 90 more makes 300. 700 more makes 1000. 790
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300 500 600 700 200 400 100 70 20 20 20 70 20 20 70 70 70 20 20 70 70 20 2
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300 500 600 700 200 400 100 90 90 40 40 40 40 90 40 90 90 40 90 90 40 40 7
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39 89 139 189 239 289 339 389 439 489 Complete +10 number sequences
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395 445 495 545 595 645 695 745 795 845 Complete +10 number sequences
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600 200 100 400 300 500 10 10 60 10 60 10 10 60 60 60 10 1
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900 600 200 700 100 800 500 400 300 80 80 30 80 30 30 30 30 30 80 30 80 30 80 80 30 80 5
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802 752 702 652 602 552 502 452 402 352 Complete +10 number sequences
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928 878 828 778 728 678 628 578 528 478 Complete +10 number sequences
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