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
48 − 10 = ______
8 × 10 = ______
14 + 10 = ______
58 − 10 = ______
52 + 20 = ______
31 − 10 = ______
28 − 10 = ______
13 + 10 = ______
70 − 10 = ______
3 × 10 = ______
27 + 20 = ______
51 − 10 = ______
17 + 10 = ______
7 × 10 = ______
41 + 10 = ______
86 + 20 = ______
40 + 10 = ______
50 − 10 = ______
87 + 20 = ______
93 − 10 = ______
