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
33 − 10 = ______
3 × 10 = ______
19 + 10 = ______
1 × 10 = ______
22 − 10 = ______
22 + 20 = ______
31 + 10 = ______
49 − 10 = ______
51 + 10 = ______
72 + 20 = ______
8 × 10 = ______
72 − 10 = ______
49 + 10 = ______
69 − 10 = ______
65 + 20 = ______
76 + 20 = ______
96 − 10 = ______
38 − 10 = ______
32 + 10 = ______
63 + 20 = ______
