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
58 + 10 = ______
90 − 10 = ______
14 + 20 = ______
7 × 10 = ______
3 × 10 = ______
1 × 10 = ______
54 + 20 = ______
71 + 20 = ______
61 + 20 = ______
5 × 10 = ______
21 + 20 = ______
92 − 10 = ______
72 + 20 = ______
64 − 10 = ______
24 − 10 = ______
83 + 20 = ______
60 + 20 = ______
4 × 10 = ______
17 + 20 = ______
43 + 10 = ______
