Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
29 − 10 = ______
9 × 10 = ______
33 − 10 = ______
63 − 10 = ______
28 − 10 = ______
8 × 10 = ______
61 − 10 = ______
55 − 10 = ______
82 + 10 = ______
38 − 10 = ______
4 × 10 = ______
68 + 10 = ______
2 × 10 = ______
1 × 10 = ______
58 + 20 = ______
75 + 10 = ______
43 + 10 = ______
62 + 20 = ______
15 + 20 = ______
64 + 10 = ______
