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
9 × 10 = ______
26 − 10 = ______
2 × 10 = ______
17 + 20 = ______
48 + 20 = ______
49 + 20 = ______
60 − 10 = ______
60 + 20 = ______
43 + 20 = ______
72 + 10 = ______
77 + 20 = ______
58 + 10 = ______
3 × 10 = ______
81 + 10 = ______
50 − 10 = ______
31 − 10 = ______
24 + 20 = ______
62 − 10 = ______
75 + 20 = ______
5 × 10 = ______
