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
30 + 20 = ______
24 − 10 = ______
49 + 20 = ______
62 + 20 = ______
34 + 10 = ______
46 + 20 = ______
2 × 10 = ______
34 − 10 = ______
51 − 10 = ______
15 + 10 = ______
96 − 10 = ______
54 + 20 = ______
73 + 10 = ______
72 + 20 = ______
68 + 20 = ______
8 × 10 = ______
72 − 10 = ______
6 × 10 = ______
85 − 10 = ______
38 + 10 = ______
