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
63 + 10 = ______
42 − 10 = ______
18 + 10 = ______
41 + 10 = ______
85 − 10 = ______
48 − 10 = ______
99 − 10 = ______
65 + 10 = ______
30 + 20 = ______
54 − 10 = ______
82 − 10 = ______
68 − 10 = ______
51 + 10 = ______
67 + 20 = ______
2 × 10 = ______
1 × 10 = ______
7 × 10 = ______
25 − 10 = ______
54 + 10 = ______
15 + 10 = ______
