Mental math test

Guidelines for Mental Math
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3 to 5 times per week
10 questions each test
5 seconds to answer each question
Test is self corrected, results recorded
name goes in for a draw (1, 2, 3 chances)
If corrected incorrectly no chance to win during the next draw.
If no red pen, no tickets for that day
Strategies used will be discussed


Mental Math # 1

1) 7000 + 300 + 40 + 3 =
2) 9000 + 70 + 3 =
3) 2000 + 50 + 400 + 4 =
4) 50 + 4000 + 7 + 300 =
5) 5 x 1000 + 3 x 100 + 9 x 10 + 2 x 1 =
6) 4 x 100 + 8 x 1 + 5 x 1000 =
7) 50 000 + 3000 + 20 + 7 =
8) 500 + 300 + 40 =

9) 80 + 40 + 20 + 2 =
10) 4000 + 500 + 3000 + 20 =


Mental Math # 1

1) 7000 + 300 + 40 + 3 = 7343
2) 9000 + 70 + 3 = 9073
3) 2000 + 50 + 400 + 4 = 2454
4) 50 + 4000 + 7 + 300 = 4357
5) 5 x 1000 + 3 x 100 + 9 x 10 + 2 x 1 = 5392
6) 4 x 100 + 8 x 1 + 5 x 1000 = 5408
7) 50 000 + 3000 + 20 + 7 = 53 027
8) 500 + 300 + 40 = 840
9) 80 + 40 + 20 + 2 = 142
10) 4000 + 500 + 3000 + 20 = 7520


Mental Math # 2

1) 500 + 3000 + 70 + 3 =
2) 6000 + 700 + 3
3) 2000 + 500 + 40 + 4 =
4) 50 000 + 30 + 7 + 8000 =
5) 3 x 10 000 + 1 x 1000 + 9 x 100 + 2 x 10 + 3 x 1
6) 4 x 1000 + 2 x 1 + 5 x 100 =
7) 200 + 300 + 20 + 5 =
8) 500 + 500 + 400 + 24 =
9) 40 + 60 + 20 + 70 + 30 =
10) 4200 + 500 + 60 =

=


Mental Math # 2

1) 500 + 3000 + 70 + 3 = 3573
2) 6000 + 700 + 3 = 6703
3) 2000 + 500 + 40 + 4 = 2544
4) 50 000 + 30 + 7 + 8000 = 58 037
5) 3 x 10 000 + 1 x 1000 + 9 x 100 + 2 x 10 + 3 x 1
6) 4 x 1000 + 2 x 1 + 5 x 100 = 4502
7) 200 + 300 + 20 + 5 = 525
8) 500 + 500 + 400 + 24 = 1424
9) 40 + 60 + 20 + 70 + 30 = 220
10) 4200 + 500 + 60 = 4760

= 31 923


Mental Math # 3

1) 90 + 7000 + 500 + 6 =
2) 60 000 + 400 + 20 + 3 =
3) 300 + 700 + 80 + 4 =
4) 50 000 + 30 + 7 + 8000 =
5) 3 x 1000 + 9 x 100 + 6 x 10 + 2 x 1 =
6) 4 x 1000 + 2 x 10 000 + 8 x 100 =
7) 20 + 80 + 30 + 5 + 70 =
8) 900 + 600 + 400 + 72 + 100 =

9) 2000 + 8000 + 700 + 30 =
10) 5100 + 900 + 70 =


Mental Math # 3

1) 90 + 7000 + 500 + 6 = 7596
2) 60 000 + 400 + 20 + 3 = 60 423
3) 300 + 700 + 80 + 4 = 1084
4) 50 000 + 30 + 7 + 8000 = 58 037
5) 3 x 1000 + 9 x 100 + 6 x 10 + 2 x 1 = 3962
6) 4 x 1000 + 2 x 10 000 + 8 x 100 = 24 800
7) 20 + 80 + 30 + 5 + 70 = 205
8) 900 + 600 + 400 + 72 + 100 = 2072
9) 2000 + 8000 + 700 + 30 = 10 730
10) 5100 + 900 + 70 = 6070


Mental Math # 4

1) 20 + 6000 + 400 + 7 =
2) 50 000 + 9000 + 200 + 30 =
3) 400 + 600 + 3 + 40 =
4) 20 000 + 300 + 9 + 4000 =
5) 5 x 1000 + 3 x 100 + 7 x 10 + 2 x 1 =
6) 7 x 1000 + 8 x 10 000 + 6 x 100 =
7) 50 + 90 + 50 + 5 + 10 =
8) 300 + 600 + 700 + 42 =
9) 4000 + 500 + 500 + 33 =
10) 3700 + 300 + 76 =

Mental Math # 4

1) 20 + 6000 + 400 + 7 = 6427
2) 50 000 + 9000 + 200 + 30 = 59 230
3) 400 + 600 + 3 + 40 = 1043
4) 20 000 + 300 + 9 + 4000 = 24 309
5) 5 x 1000 + 3 x 100 + 7 x 10 + 2 x 1 = 5372
6) 7 x 1000 + 8 x 10 000 + 6 x 100 = 87600
7) 50 + 90 + 50 + 5 + 10 = 205
8) 300 + 600 + 700 + 42 = 1642
9) 4000 + 500 + 500 + 33 = 5033
10) 3700 + 300 + 76 = 4076


Mental Math # 5

1) 200 + 60 000 + 4 + 70 =
2) 50 + 80 + 90 + 20 + 10 =
3) 400 + 600 + 3000 + 400 =
4) 23 + 300 + 7 =
5) 6 x 1000 + 2 x 100 + 0 x 10 + 2 x 1 =
6) 9 x 1000 + 8 x 10 000 + 6 x 100 +
7) 9 + 7 =
8) 90 + 70 =
9) 139 + 7 =
10) 390 + 70 =

4 x 10 =

Mental Math # 5

1) 200 + 60 000 + 4 + 70 = 60 274
2) 50 + 80 + 90 + 20 + 10 = 250
3) 400 + 600 + 3000 + 400 = 4400
4) 23 + 300 + 7 = 330
5) 6 x 1000 + 2 x 100 + 0 x 10 + 2 x 1 = 6202
6) 9 x 1000 + 8 x 10 000 + 6 x 100 + 4 x 10 = 89 640
7) 9 + 7 = 16
8) 90 + 70 = 160
9) 139 + 7 = 146
10) 390 + 70 = 460


Mental Math # 6

1) 500 + 20 + 500 + 80 =
2) 30 + 80 + 70 + 10 + 10 =
3) 200 + 800 + 30 + 400 =
4) 51 + 3000 + 9 =
5) 8 x 1000 + 3 x 100 + 4 x 10 + 4 x 1 =
6) 9 x 10 000 + 8 x 1 + 6 x 1000 =
7) 7 + 5 =
8) 70 + 50 =
9) 127 + 5 =
10) 330 + 37 =

Mental Math # 6

1) 500 + 20 + 500 + 80 = 1100
2) 30 + 80 + 70 + 10 + 10 = 200
3) 200 + 800 + 30 + 400 = 1430
4) 51 + 3000 + 9 = 3060
5) 8 x 1000 + 3 x 100 + 4 x 10 + 4 x 1 = 8344
6) 9 x 10 000 + 8 x 1 + 6 x 1000 = 96 008
7) 7 + 5 = 12
8) 70 + 50 = 120
9) 127 + 5 = 132
10) 330 + 37 = 367


Mental Math # 7

1) 48 + 21 =
2) 53 + 34 =
3) 34 + 52 =
4) 456 + 120 =
5) 438 + 340 =
6) 629 + 310 =
7) 400 + 231 =
8) 456 + 42 =
9) 381 + 405 =
10) 705 + 220 =


Mental Math # 7

1) 48 + 21 = 69
2) 53 + 34 = 87
3) 34 + 52 = 86
4) 456 + 120 = 576
5) 438 + 340 = 778
6) 629 + 310 = 939
7) 400 + 231 = 631
8) 456 + 42 = 498
9) 381 + 405 = 786
10) 705 + 220 = 925


Mental Math # 8

1) 430 + 53 =
2) 510 + 87 =
3) 349 + 220 =
4) 456 + 440 =
5) 352 + 527 =
6) 600 + 350 =
7) 434 + 231 =
8) 156 + 420 =
9) 321 + 45 =
10) 615 + 224 =


Mental Math # 8

1) 430 + 53 = 483
2) 510 + 87 = 597

3) 349 + 220 = 569
4) 456 + 440 = 896
5) 352 + 527 = 879
6) 600 + 350 = 950
7) 434 + 231 = 665
8) 156 + 420 = 576
9) 321 + 45 = 366
10) 615 + 224 = 839


Mental Math # 9

1) 974 + 23 =
2) 320 + 29 =
3) 341 + 208 =
4) 677 + 320 =
5) 425 + 563 =
6) 60 + 322 =
7) 400 + 231 =
8) 424 + 424 =
9) 333 + 425 =
10) 610 + 220 =


Mental Math # 9

1) 974 + 23 = 997
2) 320 + 29 = 349
3) 341 + 208 = 549
4) 677 + 320 = 997

5) 425 + 563 = 988
6) 60 + 322 = 382
7) 400 + 231 = 631
8) 424 + 424 = 848
9) 333 + 425 = 758
10) 610 + 220 = 830


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Mental Math # 10
543 + 253 =
841 + 200 =
128 + 331 =
415 + 363 =
52 + 315 =
400 + 200 + 387 =
398 + 502 =
260 + 540 =

9) 390 + 208 =
10) 111 + 111 + 111 =

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Mental Math # 10
543 + 253 = 796
841 + 200 = 1041
128 + 331 = 459
415 + 363 = 778
52 + 315 = 367
400 + 200 + 387 = 987
398 + 502 = 900
260 + 540 = 800

9) 390 + 208 = 598
10) 111 + 111 + 111 = 333


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Mental Math # 11
Five and three tenths =
Thirty two and four hundredths =
Seventy-seven thousandths =
Two hundred four and five hundredths =
Nine hundredths =
4 + 0.2 =
30 + 5 + 0.9 + 0.07 =
200 + 0.8 =

9) (5 x 1) + (2 x 0.1) + (4 x 0.01) =
10) 3 x 100 + 6 x 0.01 =


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Mental Math # 11
Five and three tenths = 5.3
Thirty two and four hundredths = 32.04
Seventy-seven thousandths = 0.077

Two hundred four and five hundredths = 204.05
Nine hundredths = 0.09
4 + 0.2 = 4.2
30 + 5 + 0.9 + 0.07 = 35.97
200 + 0.8 = 200.8

9) (5 x 1) + (2 x 0.1) + (4 x 0.01) = 5.24
10) 3 x 100 + 6 x 0.01 = 300.06


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Mental Math # 12
Nine and three hundredths =
Thirty two and four tenths =
Seven thousandths =
Three hundred and fifteen thousandths =
Nine hundredths =
5 + 0.2 + 0.06 =
300 + 50 + 0.9 + 0.04 =
20 + 0.08 + 3 =

9) (5 x 0.001) + (2 x 0.01) + (4 x 0.1) =

10) 3 x 100 + 6 x 0.1 + 4 x 1 =