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
72 − 10 = ______
35 − 10 = ______
35 + 10 = ______
18 + 20 = ______
26 + 20 = ______
2 × 10 = ______
85 − 10 = ______
70 + 20 = ______
7 × 10 = ______
49 + 20 = ______
6 × 10 = ______
5 × 10 = ______
34 + 20 = ______
26 − 10 = ______
86 + 10 = ______
54 − 10 = ______
16 + 20 = ______
23 + 10 = ______
50 − 10 = ______
22 − 10 = ______
