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
34 + 10 = ______
29 + 20 = ______
66 − 10 = ______
3 × 10 = ______
1 × 10 = ______
36 + 20 = ______
50 + 20 = ______
63 + 10 = ______
32 + 10 = ______
57 − 10 = ______
38 − 10 = ______
85 + 10 = ______
2 × 10 = ______
12 + 10 = ______
30 + 20 = ______
58 + 10 = ______
83 − 10 = ______
60 − 10 = ______
99 − 10 = ______
5 × 10 = ______
