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
82 − 10 = ______
44 + 10 = ______
18 + 10 = ______
42 − 10 = ______
98 − 10 = ______
2 × 10 = ______
40 + 20 = ______
49 + 10 = ______
34 − 10 = ______
41 + 20 = ______
46 − 10 = ______
23 + 20 = ______
57 + 10 = ______
32 + 20 = ______
31 + 20 = ______
8 × 10 = ______
5 × 10 = ______
1 × 10 = ______
32 + 10 = ______
16 + 20 = ______
