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
60 + 10 = ______
22 + 10 = ______
55 + 20 = ______
50 + 10 = ______
84 + 20 = ______
75 + 10 = ______
8 × 10 = ______
31 − 10 = ______
70 + 20 = ______
99 − 10 = ______
51 + 10 = ______
89 − 10 = ______
5 × 10 = ______
9 × 10 = ______
39 − 10 = ______
1 × 10 = ______
78 − 10 = ______
37 − 10 = ______
11 + 10 = ______
3 × 10 = ______
