3 + 2 = 55 + 5 = 108 + 7 = 1510 + 10 = 2015 + 15 = 3025 + 25 = 5075 + 25 = 10050 + 50 = 10075 + 75 = 150

(1)

Prénom : ...

.... Date : ...

(08)

3 + 2 = 5 5 + 5 = 10 8 + 7 = 15

10 + 10 = 20 15 + 15 = 30 25 + 25 = 50

75 + 25 = 100 50 + 50 = 100 75 + 75 = 150

 Calcule ou complète le plus rapidement possible :

49 + 1

=

⁵⁰ ⁶⁸ ^{+ 2}

=

⁷⁰ ^{69 +} ¹

=

⁷⁰

99 + 1

=

¹⁰⁰ ^{107 + 3}

=

¹¹⁰ ^{98 +} ²

=

¹⁰⁰

359 + 1

=

³⁶⁰ ^{498 + 2}

=

⁵⁰⁰ ^{429 +} ¹

=

⁴³⁰

699 + 1

=

⁷⁰⁰ ^{799 + 1}

=

⁸⁰⁰ ^{197 +} ³

=

²⁰⁰

2

498 + 2

=

^{2 500} _{529 + 1}³

=

^{3 530} _{799 +}³ ¹

=

^{3 800}

8

999 + 1

=

^{9 000} _{469 + 1}⁸

=

^{8 470} ^{997 +} ³

=

^{1 000}

4

998 + 2

=

^{5 000} _{590 + 10}⁴

=

^{4 600} _{999 +}¹ ¹

=

^{2 000}

90 + 10

=

¹⁰⁰ _{880 + 20}⁷

=

^{7 900} ^{80 +} ²⁰

=

¹⁰⁰

990 + 10

=

^{1 000} _{900 + 100}⁹

=

^{10 000} ^{970 +} ³⁰

=

^{1 000}

8

990 + 10

=

^{9 000} _{800 + 200}⁵

=

^{6 000} _{980 +}⁸ ²⁰

=

^{9 000}

900 + 100

=

^{1 000} ^{750 + 250}

=

^{1 000} ^{800 +} ²⁰⁰

=

^{1 000}

 Complète (Attention aux retenues !…) :

1

2 7 + 5 3 8 0

1

4 8 + 4 2 9 0

5 3 + 3 2 8 5

1

6 7 + 2 7 9 4

1

7 5 + 2 5 1 0 0

1

7 4 + 2 6 1 0 0

1

7 5 + 2 5 1 0 0

1

7 2 + 2 8 1 0 0 1 2 5

+ 5 0 1 7 5

1

¹

6 7 + 3 3 2 0 0

1

2 3 0 + 2 7 0 5 0 0

1

4

¹

4 1 + 3 5 9 8 0 0

 Pose en colonnes et calcule :

2 745 + 705 + 980 = 4

430 4 008 + 61 + 841 = 4 910 4 879 + 9 + 607 = 5 495

22¹7¹4 5 4¹0¹0 8 ¹4 8²7 9

(2)

+ 7 0 5 + 9 8 0 4 4 3 0

+ 8 4 1 + 6 1 4 9 1 0

+ 6 0 7 + 9 5 4 9 5