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Abacus Juniors Experts

Abacus Juniors Experts Lesson 5

Addition and subtraction in the 100s, practice without regrouping.

1 / 50

247

552

2 / 50

444

505

3 / 50

555

222

4 / 50

999

-666

5 / 50

751

126

6 / 50

131

112

7 / 50

599

100

8 / 50

888

-678

9 / 50

277

-111

10 / 50

999

-777

11 / 50

255

211

12 / 50

111

131

13 / 50

544

-511

14 / 50

666

111

15 / 50

411

511

16 / 50

999

-888

17 / 50

277

-116

18 / 50

999

-121

19 / 50

999

-444

20 / 50

444

-124

21 / 50

566

-555

22 / 50

123

-111

23 / 50

111

666

24 / 50

488

511

25 / 50

666

-555

26 / 50

444

-244

27 / 50

232

555

28 / 50

555

212

29 / 50

444

-123

30 / 50

359

510

31 / 50

324

665

32 / 50

611

-111

33 / 50

466

-166

34 / 50

711

111

35 / 50

477

-366

36 / 50

449

-200

37 / 50

522

111

38 / 50

222

515

39 / 50

400

-100

40 / 50

453

515

41 / 50

855

122

42 / 50

222

121

43 / 50

255

233

44 / 50

244

-133

45 / 50

244

-124

46 / 50

333

-311

47 / 50

777

-222

48 / 50

876

-555

49 / 50

888

-555

50 / 50

744

-611

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