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
83 − 10 = ______
87 + 10 = ______
19 + 20 = ______
8 × 10 = ______
58 + 20 = ______
79 − 10 = ______
5 × 10 = ______
27 − 10 = ______
2 × 10 = ______
38 + 10 = ______
86 + 10 = ______
19 + 10 = ______
49 + 10 = ______
71 − 10 = ______
37 + 10 = ______
60 − 10 = ______
51 + 20 = ______
60 + 20 = ______
6 × 10 = ______
84 + 20 = ______
