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
75 + 20 = ______
54 + 20 = ______
5 × 10 = ______
7 × 10 = ______
28 − 10 = ______
46 + 20 = ______
72 + 10 = ______
85 + 20 = ______
66 − 10 = ______
32 − 10 = ______
4 × 10 = ______
8 × 10 = ______
66 + 20 = ______
60 + 10 = ______
89 + 20 = ______
52 − 10 = ______
9 × 10 = ______
48 − 10 = ______
3 × 10 = ______
1 × 10 = ______
