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
86 − 10 = ______
1 × 10 = ______
56 + 20 = ______
40 + 10 = ______
5 × 10 = ______
34 + 20 = ______
6 × 10 = ______
4 × 10 = ______
49 − 10 = ______
7 × 10 = ______
8 × 10 = ______
56 − 10 = ______
93 − 10 = ______
67 − 10 = ______
59 − 10 = ______
87 − 10 = ______
38 + 20 = ______
70 + 20 = ______
87 + 20 = ______
54 + 20 = ______
