正負の掛け算割り算・基礎 No.1
1.
次の計算をしなさい。(1) 3 × 2 = (2) 6 × 3 =
(3) (−6) × 9 = (4) (−7) × 9 =
(5) (−9) × 4 = (6) (−3) × 3 =
(7) (−3) × 2 = (8) (−1) × 2 =
(9) 2 × (−8) = (10) 5 × (−4) =
(11) 1 × (−9) = (12) 2 × (−1) =
(13) 4 × (−5) = (14) 9 × (−9) =
(15) (−5) × (−3) = (16) (−2) × (−5) =
(17) (−9) × (−5) = (18) (−1) × (−2) =
(19) (−8) × (−7) = (20) (−6) × (−6) =
2.
次の計算をしなさい。(1) (−8) × (−5) = (2) (−9) × (−3) =
(3) (−1) × 6 = (4) (−3) × (−7) =
(5) 7 × (−6) = (6) (−3) × (−8) =
(7) 4 × 2 = (8) 2 × (−3) =
(9) 1 × 3 = (10) 6 × (−2) =
(11) (−2) × (−3) = (12) (−6) × 9 =
(13) 2 × (−1) = (14) 3 × 3 =
(15) 3 × (−5) = (16) 2 × 4 =
(17) 5 × (−1) = (18) (−1) × 5 =
(19) 1 × (−9) = (20) (−1) × 8 =
3.
次の計算をしなさい。(1) (−5) × 92 = (2) 72 × (−5) =
(3) (−5) × 89 = (4) 66 × 5 =
(5) (−7) × (−5) = (6) 99 × (−59) =
(7) 660 × (−3) = (8) 205 × (−9) =
(9) (−66) × (−75) = (10) (−9) × (−872) =
4.
次の計算をしなさい。(1) 5 ÷ (−1) = (2) 72 ÷ (−8) =
(3) 6 ÷ 2 = (4) (−56) ÷ 8 =
(5) 10 ÷ (−5) = (6) 10 ÷ (−2) =
(7) 18 ÷ 6 = (8) 28 ÷ (−7) =
(9) (−72) ÷ (−9) = (10) (−10) ÷ (−2) =
(11) 25 ÷ (−5) = (12) (−5) ÷ (−5) =
(13) (−3) ÷ (−1) = (14) (−4) ÷ 1 =
(15) (−27) ÷ (−3) = (16) (−49) ÷ 7 =
(17) 15 ÷ (−5) = (18) (−54) ÷ (−6) =
(19) 6 ÷ 1 = (20) 18 ÷ 3 =
5.
次の計算をしなさい。(1) 190 ÷ 5 = (2) (−792) ÷ 9 =
(3) (−280) ÷ 5 = (4) (−348) ÷ 4 =
(5) (−400) ÷ 8 = (6) 2520 ÷ 7 =
(7) 1144 ÷ 88 = (8) 6128 ÷ (−8) =
(9) 3115 ÷ 89 = (10) 5696 ÷ (−8) =
6.
次の計算をしなさい。(1) (−4) × 7 × 4 = (2) 4 × 2 × (−9) =
(3) (−20) × (−7) ÷ (−4) = (4) (−63) × 7 ÷ 7 =
(5) (−72) ÷ (−8) × 2 = (6) (−35) ÷ 7 × 4 =
(7) 32 ÷ (−8) ÷ 2 = (8) 448 ÷ 8 ÷ (−8) =
(9) 96 ÷ (−8) ÷ 4 = (10) (−135) ÷ (−3) ÷ 9 =
7.
次の計算をしなさい。(1) (−54) ÷ (−6) × (−7) = (2) (−9) × (−7) × (−2) =
(3) 7 × 4 ÷ (−2) = (4) 16 ÷ 2 × (−7) =
(5) 16 ÷ 4 ÷ (−2) = (6) (−6) × 7 × 5 =
(7) (−40) ÷ 5 ÷ (−2) = (8) 729 ÷ (−9) ÷ (−9) =
(9) 56 ÷ 7 × (−3) = (10) 2 × (−7) × 7 =
正負の掛け算割り算・基礎 No.1
1.
次の計算をしなさい。(1) 3 × 2 =
6
(2) 6 × 3 =18
(3) (−6) × 9 =
− 54
(4) (−7) × 9 =− 63
(5) (−9) × 4 =
− 36
(6) (−3) × 3 =− 9
(7) (−3) × 2 =
− 6
(8) (−1) × 2 =− 2
(9) 2 × (−8) =
− 16
(10) 5 × (−4) =− 20
(11) 1 × (−9) =
− 9
(12) 2 × (−1) =− 2
(13) 4 × (−5) =
− 20
(14) 9 × (−9) =− 81
(15) (−5) × (−3) =
15
(16) (−2) × (−5) =10
(17) (−9) × (−5) =
45
(18) (−1) × (−2) =2
(19) (−8) × (−7) =
56
(20) (−6) × (−6) =36
2.
次の計算をしなさい。(1) (−8) × (−5) =
40
(2) (−9) × (−3) =27
(3) (−1) × 6 =
− 6
(4) (−3) × (−7) =21
(5) 7 × (−6) =
− 42
(6) (−3) × (−8) =24
(7) 4 × 2 =
8
(8) 2 × (−3) =− 6
(9) 1 × 3 =
3
(10) 6 × (−2) =− 12
(11) (−2) × (−3) =
6
(12) (−6) × 9 =− 54
(13) 2 × (−1) =
− 2
(14) 3 × 3 =9
(15) 3 × (−5) =
− 15
(16) 2 × 4 =8
(17) 5 × (−1) =
− 5
(18) (−1) × 5 =− 5
(19) 1 × (−9) =
− 9
(20) (−1) × 8 =− 8
3.
次の計算をしなさい。(1) (−5) × 92 =
− 460
(2) 72 × (−5) =− 360
(3) (−5) × 89 =
− 445
(4) 66 × 5 =330
(5) (−7) × (−5) =
35
(6) 99 × (−59) =− 5841
(7) 660 × (−3) =
− 1980
(8) 205 × (−9) =− 1845
(9) (−66) × (−75) =
4950
(10) (−9) × (−872) =7848
4.
次の計算をしなさい。(1) 5 ÷ (−1) = (2) 72 ÷ (−8) =
(3) 6 ÷ 2 = (4) (−56) ÷ 8 =
(5) 10 ÷ (−5) = (6) 10 ÷ (−2) =
(7) 18 ÷ 6 = (8) 28 ÷ (−7) =
(9) (−72) ÷ (−9) = (10) (−10) ÷ (−2) =
(11) 25 ÷ (−5) = (12) (−5) ÷ (−5) =
(13) (−3) ÷ (−1) = (14) (−4) ÷ 1 =
(15) (−27) ÷ (−3) = (16) (−49) ÷ 7 =
(17) 15 ÷ (−5) = (18) (−54) ÷ (−6) =
(19) 6 ÷ 1 = (20) 18 ÷ 3 =
5.
次の計算をしなさい。(1) 190 ÷ 5 = (2) (−792) ÷ 9 =
(3) (−280) ÷ 5 = (4) (−348) ÷ 4 =
(5) (−400) ÷ 8 = (6) 2520 ÷ 7 =
(7) 1144 ÷ 88 = (8) 6128 ÷ (−8) =
(9) 3115 ÷ 89 = (10) 5696 ÷ (−8) =
6.
次の計算をしなさい。(1) (−4) × 7 × 4 =
− 112
(2) 4 × 2 × (−9) =− 72
(3) (−20) × (−7) ÷ (−4) =
− 35
(4) (−63) × 7 ÷ 7 =− 63
(5) (−72) ÷ (−8) × 2 =
18
(6) (−35) ÷ 7 × 4 =− 20
(7) 32 ÷ (−8) ÷ 2 =
− 2
(8) 448 ÷ 8 ÷ (−8) =− 7
(9) 96 ÷ (−8) ÷ 4 =
− 3
(10) (−135) ÷ (−3) ÷ 9 =5
7.
次の計算をしなさい。(1) (−54) ÷ (−6) × (−7) =
− 63
(2) (−9) × (−7) × (−2) =− 126
(3) 7 × 4 ÷ (−2) =
− 14
(4) 16 ÷ 2 × (−7) =− 56
(5) 16 ÷ 4 ÷ (−2) =
− 2
(6) (−6) × 7 × 5 =− 210
(7) (−40) ÷ 5 ÷ (−2) =
4
(8) 729 ÷ (−9) ÷ (−9) =9
(9) 56 ÷ 7 × (−3) =
