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
2 × 10 = ______
29 − 10 = ______
8 × 10 = ______
43 + 20 = ______
18 + 10 = ______
49 − 10 = ______
60 + 10 = ______
50 − 10 = ______
54 + 10 = ______
11 + 10 = ______
62 + 20 = ______
80 − 10 = ______
68 + 20 = ______
3 × 10 = ______
4 × 10 = ______
70 − 10 = ______
22 − 10 = ______
75 − 10 = ______
29 + 20 = ______
35 + 10 = ______
