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
32 − 10 = ______
29 + 10 = ______
83 + 20 = ______
67 + 10 = ______
8 × 10 = ______
67 − 10 = ______
22 − 10 = ______
86 − 10 = ______
26 − 10 = ______
6 × 10 = ______
42 − 10 = ______
49 + 20 = ______
37 + 20 = ______
60 − 10 = ______
34 + 10 = ______
87 + 10 = ______
89 − 10 = ______
9 × 10 = ______
46 + 20 = ______
22 + 10 = ______
