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
7 × 10 = ______
1 × 10 = ______
30 + 20 = ______
83 + 10 = ______
72 − 10 = ______
31 + 10 = ______
58 + 20 = ______
34 + 20 = ______
85 + 10 = ______
75 − 10 = ______
87 − 10 = ______
4 × 10 = ______
16 + 20 = ______
87 + 20 = ______
3 × 10 = ______
31 + 20 = ______
24 − 10 = ______
71 − 10 = ______
22 + 20 = ______
45 + 10 = ______
