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
73 + 20 = ______
7 × 10 = ______
16 + 10 = ______
38 − 10 = ______
42 + 10 = ______
82 + 10 = ______
3 × 10 = ______
58 − 10 = ______
23 − 10 = ______
61 + 10 = ______
24 − 10 = ______
48 − 10 = ______
45 − 10 = ______
1 × 10 = ______
55 − 10 = ______
8 × 10 = ______
29 + 20 = ______
84 − 10 = ______
27 + 10 = ______
74 + 20 = ______
